Question

Reggie is making a double layer cake. The recipe for the first layer calls for 2 1/4 cups of sugar. The recipe for the second layer calls for 1 1/4 cups of sugar. Reggie has 5 cups of sugar. How much will he have left after making both recipes?

Answer 1

Answer:
`1(1)/(2)\text{ cups of sugar}`

Explanation:

Given: Reggie is making a double layer cake.

The recipe for the first layer requires cups of sugar
`=2(1)/(4)\text{ cups of sugar}`

`=(9)/(4)\text{ cups of sugar}`

The recipe for the second layer requires cups of sugar
`=1(1)/(4)\text{ cups of sugar}`

`=(5)/(4)\text{ cups of sugar}`

If Reggie has 5 cups of sugar, then he will have left sugar after making both recipes
`=5-(9)/(4)-(5)/(4)`

`=(20-9-5)/(4)=(6)/(4)=(3)/(2)=1(1)/(2)\text{ cups of sugar}`