Question

sarah is making a dessert that calls for 3 1/4 of crushed cookies. if she has already crushed 3/4 , how much more does she need?

Answer 1

The answer is 5/2.

Explanation:

1) conversion a mixed number to a improper fraction: 3 1/4 = 3•4+1 / 4 = 13/4.

2) subtract. 13/4 - 3/4 = 13-3/4 = 10/4 = 5/2 .

Answer 2

Your anwere is

Step-by-step ex planation:/

2 1/2 cups because 3/4 subtracted from 3 1/4 cup is 2 1/2 cups of crushed cookies stiil needed