Sarah needs to make a cake and some cookies The cake requires 3.8 cup of sugar and the cookies require 3.5 cup of sugar Sarah has 15.16 cups of sugar Does she have enough sugar or how much more do?

Answer 1

3over 8 plus 3 over 5 cup of cookies add equals 39 over 40 subtract what she needs 15 over 15 you get 3 over 80 witch is the answer

-OR-

Answer:

First, find a common denominator with the fractions: 3/8 and 3/5

80 would be the common denominator:3/8 is 30/80

3/5 is 48/80

so she needs 78/80.

She only has 15/16 which is 75/80.

She needs 3/80 cup more.