$\frac{14}{70}=\frac{14: 7}{70: 7}=\frac{2}{10}$
$\frac{11}{25}=\frac{11\times4}{25\times 4}=\frac{44}{100}$
$\frac{75}{300}=\frac{75:3}{300: 3}=\frac{25}{100}$
$\frac{23}{500}=\frac{23\times 2}{500\times 2}=\frac{46}{1000}$
$\frac{14}{70}=\frac{14: 7}{70: 7}=\frac{2}{10}$
$\frac{11}{25}=\frac{11\times4}{25\times 4}=\frac{44}{100}$
$\frac{75}{300}=\frac{75:3}{300: 3}=\frac{25}{100}$
$\frac{23}{500}=\frac{23\times 2}{500\times 2}=\frac{46}{1000}$