Question

In each of the following, check whether or not the given ratios form a proportion:​
(v)$\frac{15}{18}\text{and}\frac{10}{12}$

Answer 1

Given equation can be written as,

$\frac{15}{18}=\frac{5\times 3}{6\times 3}=\frac{5}{6}$

$\text{and}$,

$\frac{10}{12}=\frac{5\times 2}{6\times 2}=\frac{5}{6}$

$\therefore$ $15:18=10:12$

Hence they form a proportion.