Question

Multiply:

vii) $-\frac{3}{5}$ by $-\frac{4}{7}$

Answer 1

To multiply:

$\frac{-3}{5}$ by $\frac{-4}{7}$

$=\frac{-3}{5}\times \frac{-4}{7}$

$=\frac{-3\times (-4)}{5\times 7}$ $(\because \frac{a}{b}\times \frac{c}{d}=\frac{a\times c}{b\times d})$

$=\frac{12}{35}$

Hence, the required product is $\frac{12}{35}$ .