Question
Simplify: $\frac{a}{10}+\frac{2 a}{5}$
✓
Answer
$\begin{aligned} & \frac{a}{10}+\frac{2 a}{5} \\ & \frac{a+4 a}{10}=\frac{5 a}{10}=\frac{a}{2}\end{aligned}$
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