HELP ASAP! GIVING BRAINLIEST TO BEST ANSWERS FOR THESE 2 QUESTIONS!

In order to multiply fractions, we should multiply the numerator of the first fraction times the numerator of the second fraction, like so:
3•5=15
Do the same with the denominator:
10•7=70
15/70 is the answer.
Same with the other fractions:
7•2=14
10•4=40
Hence, 14/40 is the answer.

Hope it helps.

Do comment if you have any query.

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171583 171583 · Answer 2 · 2022-04-11T16:24:54+02:00

Let's start off with 1. 3/10 * 5/7

3/10×5/7=?

For fraction multiplication, multiply the numerators and then multiply the denominators to get

(3×5) / (10×7) = 15 / 70

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 15 and 70 using

GCF(15,70) = 5

(15÷5)/ (70÷5)=3/14

Therefore:

3/10×57=3/14

Now, #2. 7/10 * 2/4- We do the same process.

7/10×2/4=?

For fraction multiplication, multiply the numerators and then multiply the denominators to get

(7×2) / (10×4)=1440

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 14 and 40 using

GCF(14,40) = 2

(14÷2) / (40÷2) = 7/20

Therefore:

7/10×2/4=7/20

Hope this helps!