Question

A baby gains 11 pounds in its first year of life. The baby gained 4 1/4 pounds during the first four months and 3 1/2 pounds in it's second four months. how much did the baby gain in the last four months?​

Answer 1

3.25

Explanation:

Add 4 1/4 to 3 1/2 and then subtract the sum from 11

11 - (4 1/4 + 3 1/2)

for me it is easier when I change fractions onto decimals so lets do that

11 - (4.25 + 3.50)

now lets add whats inside the parenthesis

11 - 7.75

subtract

3.25