I don’t know if 8/20 is greater than 15/20. And I don’t know 2/5 is greater than 3/4

15/20 is greater than 8/20 and 3/4 is greater than 2/5.

Step-by-step explanation:

15/20 is greater than 8/20 because 15 is a bigger number than 8 (over the name denominator of course.

However, the second one requires more work.

Basically you want to make their denominators the same.

I will mulitply 3/4 by 5.

that equals 15/20.

I will mulitply 2/5 by 4.

That equals 8/20.

Thus, 3/4 is greater than 2/5.

And 3/4 is equal to 15/20.

And 2/5 is equal to 8/20.

Hope this helped! :)

all but the second one

step-by-step explanation:

cuz that one goes over 180

mark brainliest