Question

Ally's hair grew from 10 10 \frac{3}{4} 4 3 ​ inches to 13 13 \frac{1}{4} 4 1 ​ inches over 5 months. At what rate did Ally's hair grow per month?

Answer 1

0.5 inches a month.

I believe you subtract 13 1/4 by 10 3/4 = 2 1/2.

Then you divide by 5.