Adding Fractions with Unlike Denominators - Part 1 (Fraction Addition)

More Lessons: www.MathAndScience.com
Twitter: / jasongibsonmath
In this lesson, we will learn the very important skill of adding fractions. In this case, we will add fractions that have unlike denominators, which means that the bottom numbers of the fractions are not the same. In order to add fractions, the denominator of both fractions must equal the same number. In these problems, the first step is to change the fractions by multiplying the numerator and denominator by the same number with the goal of expressing both fractions in terms of the same denominator. Then, we add the fractions as usual and simplify the result. Here we use fraction models to understand what it means to find a common denominator and to fully understand what it means to add fractions together.

Пікірлер: 178

  • @doxjohn3796
    @doxjohn3796 Жыл бұрын

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  • @MathAndScience

    @MathAndScience

    Жыл бұрын

    Welcome!

  • @fuzziieverlove3015
    @fuzziieverlove30153 жыл бұрын

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  • @aliciaapplegate4044
    @aliciaapplegate40442 жыл бұрын

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    @fredrickeffi2143

    7 ай бұрын

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    @Bestblox_F.F.O.T

    2 ай бұрын

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    @MathAndScience

    3 жыл бұрын

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    2 жыл бұрын

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    2 жыл бұрын

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    @shelter3099

    Жыл бұрын

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    3 жыл бұрын

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    2 жыл бұрын

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  • @MathAndScience

    @MathAndScience

    3 жыл бұрын

    Thanks so much - I really appreciate it!

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    @mathsandsciencechannel

    3 жыл бұрын

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    3 жыл бұрын

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    2 жыл бұрын

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    @nolifek1ng2 жыл бұрын

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    2 жыл бұрын

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  • @Iamwatchingvidsful
    @Iamwatchingvidsful2 жыл бұрын

    *note: 6/9 is odd and even, but can still be simplified to 2/3. So when it is said that you can not simplify any further because one number is odd and the other is even, that might be a little confusing! Amazing video though! CLEAR visuals and reasoning. I love love love this!! ❤️

  • @MathAndScience

    @MathAndScience

    2 жыл бұрын

    Great point and thank you!!

  • @ComeToJesusAndLive
    @ComeToJesusAndLive2 жыл бұрын

    May God bless you more and more and all the good people out there! You have no idea how much you've helped me understand this. You are such a great teacher!

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    @laceyburns53782 жыл бұрын

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    @yafetalebachew2365

    2 жыл бұрын

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  • @jorgeaugustobaudemont1861
    @jorgeaugustobaudemont18613 жыл бұрын

    Very clear explanation, thank you professor!

  • @MathAndScience

    @MathAndScience

    3 жыл бұрын

    Welcome!

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    @richrichards36312 жыл бұрын

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  • @MathAndScience

    @MathAndScience

    2 жыл бұрын

    ThBk you so much!

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    @sosobara60393 жыл бұрын

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    @jorgebermeo1203

    3 жыл бұрын

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    @mathsandsciencechannel

    3 жыл бұрын

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    3 жыл бұрын

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    @koradamanikanta20793 жыл бұрын

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    @penguinlearning4503 жыл бұрын

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    @mathsandsciencechannel

    3 жыл бұрын

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  • @Shannon_Robbie
    @Shannon_Robbie9 ай бұрын

    Great stuff! I wish I had those magnets back when I was a kid struggling with fractions. Question: what do you think of the "butterfly" method of adding fractions?

  • @parkavenue6970
    @parkavenue69709 ай бұрын

    Wonderful amazing great video!!! I was very disappointed because I did not think in your first explanation what the problem, when converted, would look like in tenths! I thought I was going to have to visualize and conceptualize the changed fractions myself!!! AND, I really, really wanted to see what was really going on after you converted the original fraction! BUT, you HAVE Shown what really happens after you change the denominators (to all tenths)! SO, a BIG, THANK YOU, from me to you!!! And, it's actually more of a reason than what they look like.

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    @bringyoutotheworld47333 жыл бұрын

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  • @ninjaniteacherlintv6342
    @ninjaniteacherlintv63423 жыл бұрын

    Very informative thankyou!

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    @jimmiecox24963 жыл бұрын

    All these years I couldn't figure out algebra. Maybe it was the long naps I took during 5th grade math. 😭

  • @abujasmine5035

    @abujasmine5035

    3 жыл бұрын

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    @solaraq4753

    3 жыл бұрын

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    @jamesstewart2574

    3 жыл бұрын

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    @coatechnics26763 жыл бұрын

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    @RblxqxenOfficial2 жыл бұрын

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    @chinita7238 Жыл бұрын

    Wow you are great at explaining!!! Thank you so much!

  • @rubentovar8889
    @rubentovar88892 жыл бұрын

    Very good teaching...I'm not an english native speaker but I got the whole idea.

  • @RUSOROROINSTITUTEApaer-qv9qv
    @RUSOROROINSTITUTEApaer-qv9qv Жыл бұрын

    I had never understood aboit fractions but now I do. Thank you very much

  • @kunyakadadet3302
    @kunyakadadet33022 жыл бұрын

    Thank you so you tought me a best fraction in my life may God bless you 🙏 for ever

  • @atlasrising9220
    @atlasrising9220 Жыл бұрын

    I noticed that the common denominator is usually the larger denominator of the two fractions within the problem. And multiplying the smaller denominator of the two fractions by a number that makes it equivalent to the larger denominator to find the common, add, then simplify.

  • @MYfriendsknow
    @MYfriendsknow2 жыл бұрын

    Thank you.

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    @Jakepaulontop

    2 жыл бұрын

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  • @islamicstorieswithamna9156
    @islamicstorieswithamna91563 жыл бұрын

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    @astersirdar408629 күн бұрын

    Very good explanation

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    @shurflewis6272 жыл бұрын

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    @neeuqollav222429 күн бұрын

    Usually, teachers will explain how to do the solutions but not answer WHY we did the solution. I am trying to have a good grip on Math and Chemistry fundamentals. I will be a college student soon, it embarrasses me that I am slow in both subjects, and I even chose a STEM course. I am afraid to be a laughing stock in college and decided to learn these things. Thank you so much. I am not excellent in math or science, but if I could learn English and Art on my own, maybe there is hope for me.

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    @neonexus67363 жыл бұрын

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    @abujasmine5035

    3 жыл бұрын

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    @sulemiyam8477

    3 жыл бұрын

    Hi

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    @tresajessygeorge210 Жыл бұрын

    THANK YOU... SIR...!!!

  • @aliciaforbes97
    @aliciaforbes97 Жыл бұрын

    Thank you very much

  • @fantasankoh1616
    @fantasankoh16162 ай бұрын

    You can also do it by finding the LCM of the denominators.

  • @eowen_sushi
    @eowen_sushi Жыл бұрын

    This person is underrated, this person teaches better than my teacher 😂😅

  • @MathAndScience

    @MathAndScience

    Жыл бұрын

    Thank buoy so much!

  • @janetlaryea5106
    @janetlaryea51062 жыл бұрын

    I want LCM addition and subtraction

  • @user-nx5jv3gs8z
    @user-nx5jv3gs8z3 жыл бұрын

    and thanks for the information

  • @MathAndScience

    @MathAndScience

    3 жыл бұрын

    No problem!

  • @mathsandsciencechannel

    @mathsandsciencechannel

    3 жыл бұрын

    Good content. Thanks for subscribing

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    @sonnyemanuel4261

    3 жыл бұрын

    @@MathAndScience is the channel version a bot or is it you

  • @MathAndScience

    @MathAndScience

    3 жыл бұрын

    Sonny Emanuel this is me. The real live person. There is someone else replying named “math and science channel” pretending to be me for some reason :)

  • @mathsandsciencechannel

    @mathsandsciencechannel

    3 жыл бұрын

    @@MathAndScience please am not pretending to be you sir.

  • @sonnyl2915
    @sonnyl29153 жыл бұрын

    👍👍👍

  • @MathAndScience

    @MathAndScience

    3 жыл бұрын

    Thanks!

  • @mathsandsciencechannel

    @mathsandsciencechannel

    3 жыл бұрын

    Good content. Thanks for subscribing

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    @abujasmine5035

    3 жыл бұрын

    @@mathsandsciencechannel STFU

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    @kyreeduncan1888

    2 жыл бұрын

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  • @raymondallenjhangiani7670
    @raymondallenjhangiani76702 жыл бұрын

    Dear Sir, you are truly blessed to teach with skill and paitence ? Your channel is awesome ! God bless you always 🙏 thank you

  • @natashas.6980
    @natashas.6980 Жыл бұрын

    after all these years, I'm 38 years old and now I understand this

  • @bredasullivan7875
    @bredasullivan78752 жыл бұрын

    Oh my God this man makes maths so enjoyable, simple...thank you Professor..

  • @vuhongkt5155
    @vuhongkt51552 жыл бұрын

    10/10

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    @user-vb3uq5vv1u Жыл бұрын

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  • @Bestblox_F.F.O.T
    @Bestblox_F.F.O.T2 ай бұрын

    Nice

  • @ozairsiddiqui4371
    @ozairsiddiqui43713 жыл бұрын

    Thank you from useful lessons. Can you please teach us about rounding decimals. Thank you

  • @roumyadipchakraborty4745
    @roumyadipchakraborty47453 жыл бұрын

    Sir what would be the answer of 2/8 + 2/9 ? The denominators are even and odd they haven't same multiples .. please sir

  • @eyepod2006

    @eyepod2006

    3 жыл бұрын

    Make a denominator to 72. Multiply by 9 to 2/8 and multiply by 8 to 2/9 so 18/72+ 16/72=34/72

  • @roumyadipchakraborty4745

    @roumyadipchakraborty4745

    3 жыл бұрын

    Thanks

  • @SandeepKumar-zl2cd

    @SandeepKumar-zl2cd

    3 жыл бұрын

    17/36

  • @shadow999m5
    @shadow999m5 Жыл бұрын

    why we use 2x2 and 4x2 to make 4 by 8 in simplest form why we don't use 1+1+1+1 by 1+1+1+1+1+1+1+1 and cut similar one to make 4 by 8 in simplest form

  • @sudhakrish8743
    @sudhakrish8743 Жыл бұрын

    Sir 👍

  • @bghdad1789
    @bghdad17893 жыл бұрын

    مرحباً استاذ ممكن تضع ترجمه لفيديو لكي استطيع فهم ماتقول . انا مهتم بلفيزياء . وشكراً

  • @mathsandsciencechannel

    @mathsandsciencechannel

    3 жыл бұрын

    Good content. Thanks for subscribing

  • @sethfrederick1336
    @sethfrederick13362 жыл бұрын

    Oh I just remembered to floss the dogs

  • @user-ne9ij9fx4n
    @user-ne9ij9fx4n11 ай бұрын

    How did you get the 2 in the fraction

  • @normabeatriz4247
    @normabeatriz42473 жыл бұрын

    What can I say: VIVA LA PIZZA! Thank you professor!

  • @mathsandsciencechannel

    @mathsandsciencechannel

    3 жыл бұрын

    Good content. Thanks for subscribing

  • @sonnyemanuel4261
    @sonnyemanuel42613 жыл бұрын

    m

  • @hemarajue2736
    @hemarajue27363 жыл бұрын

    I think LCM and LCD are the same except that LCM is more generally used and LCD is used with fractions, while adding fractions. Kids would have enjoyed your lesson, adding fractions. Even the adults could if they haven't done it earlier as I did it once. A story is to motivate A lesson is to teach An example is to inspire Time is to test.

  • @MathAndScience

    @MathAndScience

    3 жыл бұрын

    Thank you!

  • @mathsandsciencechannel

    @mathsandsciencechannel

    3 жыл бұрын

    Good content. Thanks for subscribing

  • @hemarajue2736

    @hemarajue2736

    3 жыл бұрын

    @@mathsandsciencechannel I think of some shortcut methods to find LCD: 1. If the denominators of fractions are primes,just multiply them to get LCD. 2. If one denominator is divisible by another evenly,then dividend is the LCD. 3. List some multiples of larger denominator,divide those by another,the first multiple that divides enenly is the LCD.

  • @rabeiradwan3573
    @rabeiradwan3573 Жыл бұрын

    The 5/6 looks like Pac-Man

  • @user-nx5jv3gs8z
    @user-nx5jv3gs8z3 жыл бұрын

    im early

  • @mathsandsciencechannel

    @mathsandsciencechannel

    3 жыл бұрын

    Good content. Thanks for subscribing

  • @bredasullivan7875
    @bredasullivan78752 жыл бұрын

    Brilliant , simple explanations

  • @bhuvansinghkarki5556
    @bhuvansinghkarki55562 жыл бұрын

    You are the best professor of math

  • @bhuvansinghkarki5556
    @bhuvansinghkarki55562 жыл бұрын

    You make maths so easy

  • @bringyoutotheworld4733
    @bringyoutotheworld47333 жыл бұрын

    Here is my thought I think he is a good teacher and he is very talented.

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    21/100

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/2 +1/4

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/3X2/2=2/6

  • @pamelafrancis4476
    @pamelafrancis44763 жыл бұрын

    The penny dropped when I saw the pieces of pizza.

  • @mathsandsciencechannel

    @mathsandsciencechannel

    3 жыл бұрын

    Good content. Thanks for subscribing

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    3/6 +1/3

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/3+1/6

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/4x2/2=2/8

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    2/8 +1/4

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    3/100+20/100=23/100

  • @ronaldo.cristiano7571
    @ronaldo.cristiano75715 ай бұрын

    i started a month ago i turned all my b's to a's thank you so much for these videos and also keep doing the hard work and effort📝📝📝

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/6x2/2= 2/12

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/3x2/2=2/6

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    5/6

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/4+2/4=3/4

  • @spysikuss1978
    @spysikuss19782 жыл бұрын

    me in grade 3rd

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    2/12 + 1/6

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    33/100

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/2x2/2=2/4

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    67/100

  • @KatSuki_Wuki
    @KatSuki_Wuki3 жыл бұрын

    🤩🤩this is amazing 🤩 🤩🤩🤩

  • @goldfsish777
    @goldfsish777 Жыл бұрын

    Why multiple it by two where is two come from

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/2

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    3/10x10/10=30/100

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/3

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/10x10/10=10/100

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    6/10x10/10=60/100

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    1/6+2/6=3/6=1/2

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    6/10 + 7/100

  • @racquelsabesaje4562
    @racquelsabesaje4562 Жыл бұрын

    3/5x2/2=6/10

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