Question

Jenny made five loaves of banana bread that had 1/4 cup of oil in each loaf. After she was done baking, she had 5/8 cup of oil remaining. How much oil did she have before baking? ______ cups

Answer 1

The answer is 1 - 5/8
= 3/8

Answer 2

First we need to find out how much oil she used in all of the loaves: 1/4*5=  5/4, and add it to the ramaining oil: 5/8+ 5/4( converting 5/4 to 8 by multiplying by 2), you get 15/8. Now simplify to get: 1 and 7/8 cups of oil.
Hope this helps!