Question
$\frac{3}{4}-\frac{1}{2}$
✓
Answer
4 is the multiple of 2. So,
$\begin{aligned} \frac{3}{4}-\frac{1}{2} & =\frac{3}{4}-\frac{1 \times 2}{2 \times 2} \\ & =\frac{3}{4}-\frac{2}{4} \\ & =\frac{3-2}{4}=\frac{1}{4}\end{aligned}$
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