#### Answer

-1

#### Work Step by Step

$-\frac{5}{12} \div \frac{5}{12} = -\frac{5}{12} \times \frac{12}{5}$ = -1
$\frac{5}{12}$ and $\frac{12}{5}$ are reciprocals, so their product equals 1. Since they have different signs however, their product is negative.