Question
Compare: $\frac{2}{7}$ and $\frac{-3}{-8}$
✓
Answer
$\begin{aligned} & \frac{2}{7} \text { and } \frac{-3}{8} \\ & 2 \times 8 \text { and } 7 \times-3 \\ & \left(\because \frac{a}{b} \text { and } \frac{c}{d} \Rightarrow a \times d \text { and } b \times c\right) \\ & 16>-21 \quad(\because a \times d>b \times c) \\ & \therefore \frac{2}{7}>\frac{-3}{8}\end{aligned}$
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