Question

In a class, there are $25$ boys and $20$ girls. Find the ratio in the simplest form of boys to girls.

Answer 1

The no. of boys in the class = $25$
The no. of girls in the class = $20$
The ratio of no. of boys to no. of girls = $\frac{25}{20}$= $\frac{5\times 5}{5\times 4}$$=\frac{5}{4}$
$5\mathrm{and}4$ have no common factor other than $1$
So, the simplest form of the ratio is $5:4$.