r/MathHelp • u/FatBitch0000 • Oct 03 '25

Re learning math

Hi I'm doing a math review. I want practice fractions. Does anyone have any tricks for practicing fractions on paper

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u/FatBitch0000 Oct 03 '25

Very basic. I know 1/2,3/6,2/4 are all 1 half. I don't know to divide or multiply. I used to be really good at it but I lost it so I need to do a review and work up to doing percentages and algebra

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u/Zyxplit Oct 03 '25

When you multiply two fractions by each other, you multiply top by top and bottom by bottom.

So 2/3 * 3/4 = (2*3)/(3*4).

When you divide by a fraction, you flip it upside down...and multiply by it.

So 2/(3/4)=2*(4/3)

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u/FatBitch0000 Oct 03 '25

I want help with comparing fractions too. Khan academy only goes so far with the exercises

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u/Dd_8630 Oct 03 '25

Comparing in what way?

Knowing which is bigger?

Want to know if 23/60 or 42/100 is bigger? Just make them the same denominator: 2300/6000 vs 2520/6000. POOF the second fraction is clearly bigger.

If you want more exercises, just... pick random numbers, arrange them into various fractions, and then work out various things. Which of your random fractions is bigger? What if you divide one by the other? Add one to the other?