what is the answer to number 3 in the the comparing fractions practice test for fourth grade

Question

i dont under stand it

 

Answer 1

In order to compare the fractions

you MUST find the common denominator.

 

 Here is an example:

 

 

   3/4   vs    2/5

 

 

 The common denominator is 20

 

3/4 = 15/20

while 2/5 = 8/20

 

So

 

 3/4 = 15/20 > 8/20 = 2/5

 

The answer is greater than >

 

Yes, please repost with an actual problem to solve.