Question
Express $\frac{-3}{5}$ as a rational number with denominator. $20$
✓
Answer
$20 = 5 \times 4$
$\frac{-3}{5}=\frac{-3\times4}{5\times4} ($Multiplying numerator and denominator by $4)$
$=\frac{-12}{20}$
$\frac{-3}{5}=\frac{-3\times4}{5\times4} ($Multiplying numerator and denominator by $4)$
$=\frac{-12}{20}$
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