Hi there, well the opposite of subtraction is addition. So we are going to add 2/5 by 1/5. 2/5+1/5=3/5, to check if we are right we do 3/5-1/5 and that would equal 1/5. Therefore, X=3/5
Some answers are 12:14, 18:21, and 24:28
8 slices equal a whole pie.
Subtract 8 from 13 :
13-8 = 5
Mixed number = There are 1 and 5/8 pies left
Improper fraction = 13/8 pie left
R is 4 if I'm wrong sorry
The answer I believe is b