Question

Simplify $3\frac{4}{7}\times 2\frac{2}{5}\times 1\frac{3}{4}$.

Answer 1

$3\frac{4}{7}\times 2\frac{2}{5}\times 1\frac{3}{4}$

$=\frac{21+4}{7}\times \frac{10+2}{5}\times \frac{4+3}{4}$

$=\frac{25}{7}\times \frac{12}{5}\times \frac{7}{4}=15$