Answer
$8\frac{4}{5}$
Work Step by Step
$3\frac{1}{5}\times2\frac{3}{4}$
$=\frac{16}{5}\times\frac{11}{4}$
$=\frac{4}{5}\times\frac{11}{1}$
$=\frac{44}{5}$
$=8\frac{4}{5}$
Check by estimating:
$3\frac{1}{5}\times2\frac{3}{4}$
Round the fractions for a quick estimation.
$3\times3=9$
$9\approx8\frac{4}{5}$
This estimate is close to the exact value, so our answer is reasonable.