Question

Sean used 1-3/4 cup of sugar to make a dozen brownies. How many cups of sugare are used for 6 dozen brownies?

a
6-3/4
b
10-2/4
c
42/4
d
10-1/2

Answer 1

10 1/2

Explanation:

We need to convert 1 3/4 to an improper fraction

1 3/4 = (4*1+3)/4 = 7/4

Multiply this by the number of batches

7/4*6 = 42/4 = 21/2

Change this back to a mixed number

2 goes into 21 10 times with 1 left over

10 1/2