Question

There are $18$ boys and $22$ girls in the class. What is the ratio of boys to girls?

Answer 1

Given: Number of boys $=18$
Number of girls$=22$
The ratio of the number of boys to the number of girls $=\frac{18}{22}$

$$\begin{gathered} =\frac{2\times 9}{2\times 11} \\ =\frac{9}{11} \end{gathered}$$
Hence, the ratio of boys to girls is $\mathbf{9}\mathbf{}\mathbf{:}\mathbf{11}$.