Question

Simplify:

(13) $\frac{9}{4}+\frac{1}{7}$

Answer 1

$$\begin{gathered} \frac{9}{4}+\frac{1}{7} \\ =\frac{9\times 7}{4\times 7}+\frac{1\times 4}{7\times 4} \\ =\frac{63}{28}+\frac{4}{28} \\ =\frac{63+4}{28} \\ =\frac{67}{28} \end{gathered}$$