How to subtract fractions with unlike denominators fast (different denominators)

Today I’m going to show you a little trick for subtracting fractions with different denominators or unlike denominators.

To subtract fractions with unlike denominators, first, we need to cross multiply, start by multiplying the first numerator with the second denominator. Next, multiply the first denominator with the second numerator and subtract the second product from the first product to find the numerator of the resulting fractions. Finally, to find the denominator of the resulting fractions, multiply the 2 denominators.

Don’t forget to simplify the resulting fraction when it’s necessary. That all for today, we will continue with more fractions lessons in the next videos.

📚 References:
📕 Dorling Kindersley Limited (2016). How to be good at math (p. 52).
📘 Fandiño, M. (2009). Las fracciones aspectos conceptuales y didácticos (p. 146). Magisterio.

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[qwentlys]

My children watch your channel, you make it easy for them to understand fractions

[blancarobles]

THANK YOU SO MUCH, I HAVE A TEST TOMORROW AND YOU SAVED ME 🙏🙏🙏🙏

[madeehazaman]

Thank you hugemath1 this is very understandable

[cynthialarzabal]

Thank you so much! my nephew and I just finished his IXL! sos une angel!

[SlayKitties]

Thank you so much for the help! I love subtracting fractions with this strategy!!

[RakhiSharma-qpmm]

So easy thank you 🎉🎉. You make subtraction of fraction with unlike denominator easy

[Gabeisaredneck]

I had an asinment I had to finish last minute and I didn't know how to do it and your video helped me

[ka-chil-lax]

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[ngaihkim]

Bro thank u so much i never get this in school 😭 😭

[LANAABDELFATAHMOHAMMEDABDELFAT]

does it work on every problem also thank you so much i have an exam tomorrow and this will help me a lot.

[arjayabaya]

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[calvinarceo]

Hello! Can you do a 3 digit multiplication trick?

[shivanginarayan]

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[Leshaanpro]

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[jacobharris]

why as 40yr man who is relearning maths for bussiness management class this is works

[thinz]

Is it ok to have a 2 digit number in the anwser?

[PEDROSEDITZ]

Thank you this method is the only one I understand thanks I was struggling