Question
Express $\frac{5}{7}$ as a rational number with numerator: $-84$
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Answer
$\frac{5}{7}$ as a rational number with denominator:$ -84$ is: $\frac{5\times-12}{7\times-12}=\frac{-60}{-80}$ (Multiplying numerator and denominator by $-12$)
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