Question
$\frac{3}{9}+\frac{3}{5}$
$\begin{aligned} \frac{3}{9}+\frac{3}{5} & =\frac{3 \times 5}{9 \times 5}+\frac{3 \times 9}{5 \times 9} \\ & =\frac{15}{45}+\frac{27}{45} \\ & =\frac{15+27}{45}=\frac{42}{45}\end{aligned}$
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