a baby weighed 7 pounds 7 ounces at birth and 8 1/8 pounds at her first chekup how many ounces had the baby gained

Respuesta :

7 lbs 7 oz is a total of 119 oz
8 1/8 lbs is a total of 130 oz
So, the baby gained a total of 11 ounces.
so first:
7 ounces = 7/16   1/8 = 2/16 = 2 ounces
then:
8 pounds 2 ounces - 7 pounds 7 ounces = 11 ounces 
130 ounces - 119 ounces = 11 ounces
11 ounces is your answer

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