Question

Amber kept track of every minute she practiced guitar. During the week Amber practiced 9 7/30 hrs, but on the weekend she could only spend 17/30 of an hour practicing. About how many hrs did amber practice total during the week and weekend? Estimate by rounding to the nearest whole number.

Answer 1

start by converting the mixed number into a fraction

$9\frac{7}{30}=\frac{30\cdot9+7}{30}=\frac{270+7}{30}=\frac{277}{30}$

add both week and weekend hours

$\frac{277}{30}+\frac{17}{30}=\frac{277+17}{30}=\frac{294}{30}$

convert the fraction to decimal

$\frac{294}{30}=9.8\approx10hours$