Question

Evaluate the following:
$\left(i\right)\frac{3}{7}\times \frac{5}{9}$ $\left(ii\right)\frac{2}{5}\times 5\frac{1}{4}$
$\left(iii\right)2\frac{1}{3}\times 5\frac{4}{21}$ $\left(iv\right)3\frac{1}{6}\times \frac{7}{4}23$

Answer 1

$\left(i\right)\frac{3}{7}\times \frac{5}{9}=\frac{5}{21}$
$\left(ii\right)\frac{2}{5}\times 5\frac{1}{4}=\frac{2}{5}\times \frac{21}{4}$
$=\frac{21}{10}=2\frac{1}{10}$
$\left(iii\right)2\frac{1}{3}\times 5\frac{4}{21}=\frac{7}{3}\times \frac{109}{21}$
$=\frac{109}{9}=12\frac{1}{9}$
$\left(iv\right)3\frac{1}{6}\times 7\times \frac{4}{23}=\frac{19}{6}\times \frac{165}{23}$
$=\frac{1045}{46}=22\frac{33}{46}$