Question

2/5 x 7/10 x 2/14

2/3 x 6/7 x 7/2

1/3 x 3 1/2

Answer 1

2/5 x 7/10 x 2/14

$\frac{2}{5}\cdot \frac{7}{10}\cdot \frac{2}{14}$
$\frac{2}{5}\cdot \frac{1}{7}\cdot \frac{7}{10}$
$\frac{2\cdot \:7\cdot \:1}{5\cdot \:10\cdot \:7}$
$\frac{2}{50}=\frac{1}{25}$

2/3 x 6/7 x 7/2

$\frac{2}{3}\cdot \frac{6}{7}\cdot \frac{7}{2}$
$\frac{2\cdot \:6\cdot \:7}{3\cdot \:7\cdot \:2}$
$\frac{6\cdot \:7}{3\cdot \:7}$
$\frac{6}{3} = 2$

1/3 x 3 1/2

$\frac{1}{3}\cdot 3\frac{1}{2}$
$\frac{1}{3}\cdot \frac{7}{2}$
$\frac{7}{2\cdot \:3}$
$\frac{7}{6}$