Question

The equivalent rational number of $\frac{7}{9},$ whose denominator is $45$ is _____

Answer 1

equivalent rational number of $\frac{7}{9},$ whose denominator is $45$

To get $45$ in the denominator multiply both numerator and denominator by $5.$

$$\begin{gathered} \therefore \frac{7}{9}=\frac{(7\times 5)}{(9\times 5)} \\ =\frac{35}{45} \end{gathered}$$

So, the equivalent rational number of $\frac{7}{9},$whose denominator is $45$ is $\underline{\frac{\mathbf{35}}{\mathbf{45}}}$