Question

Karl has 11 cups of sugar, and he wants to make 2 batches of his famous triple chocolate cookies, and 1 batch of sugar cookies. Each batch of triple chocolate cookies takes $2\frac{1}{3}$ cups of sugar, and each batch of sugar cookies takes $3\frac{2}{5}$ cups of sugar. After Karl makes his cookies, how many cups of sugar will he have left? Express your answer as a mixed number.

Answer 1

Answer:

  2 14/15 cups

Step-by-step explanation:

The total amount of sugar Karl uses for his cookies will be ...

  2(2 1/3) +1(3 2/5) = 4 2/3 +3 2/5

  = 4 10/15 +3 6/15 = 7 16/15 = 8 1/15

Then the amount of sugar Karl will have left is ...

  11 - (8 1/15) = 2 14/15 . . . cups