Question:
By what number should we multiply $\frac{-8}{13}$ so that the product may be 24 ?
Solution:
Let the number be $\mathrm{x}$.
$\therefore \mathrm{x} \times \frac{-8}{13}=24$
or $\mathrm{x}=24 \div \frac{-8}{13}$
or $\mathrm{x}=24 \times \frac{13}{-8}$
or $x=-39$
Thus, the number is $-39$.
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