MCQ
$1\div\frac{-5}{7}=$
- A$\frac{2}{7}$
- B$\frac{5}{7}$
- C$-\frac{2}{7}$
- ✓$\frac{-7}{5}$
$1\div\frac{-5}{7}$
$=1\times\frac{7}{-5}$ $\Big(\text{x}\div\text{y}=\text{x}\times\frac{1}{\text{y}}\Big)$
$=\frac{7}{-5}$
$=\frac{7\times(-1)}{-5\times(-1)}$
$=\frac{-7}{5}$
Hence, the correct answer is option $(d).$
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