## Prealgebra (7th Edition)

$19\frac{2}{5}$
$3\times6\frac{7}{15}$ $=\frac{3}{1}\times\frac{97}{15}$ $=\frac{1}{1}\times\frac{97}{5}$ $=\frac{97}{5}$ $=19\frac{2}{5}$ Check your work by estimating $3\times6\frac{7}{15}$ Round the fractions for a quick estimate. $3\times6$ $=18$ $18\approx19\frac{2}{5}$ The estimate is close to the exact value, so our answer is reasonable.