38) What is 2 1 4 · 9 5?

A) 1 1/4

B) 1 5/12

C) 3 17/20

D) 4 1 / 20

D.) 4 1/20

Step-by-step explanation:

2 1/4 * 9/5

Change 2 1/4 to an improper fraction

4*2+1 = 9/4

9/4 * 9/5

Multiply straight across the numerators and then straight across the denominators

9 * 9 = 81 4 * 5 = 20

81/20

Change this back into a mixed number

81 divided by 20 = 4 1/20

b 41/20 because it makes most sense