Question
Express $\frac{-12}{13}$ as a rational number with numerator 60
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Answer
Rational number $=\frac{-12}{13}$
$60=-12\times(-5)$
$\therefore\frac{-12}{13}=\frac{-12\times(-5)}{13\times(-5)}=\frac{60}{-65}$
$60=-12\times(-5)$
$\therefore\frac{-12}{13}=\frac{-12\times(-5)}{13\times(-5)}=\frac{60}{-65}$
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