Answer
$-\frac{4}{3}$
Work Step by Step
The reciprocal of a number $a$ is the number$\frac{1}{a}$, such that $a\times\frac{1}{a}=1$.
The reciprocal of $-\frac{3}{4}=\frac{1}{-\frac{3}{4}}=-\frac{4}{3}$
$-\frac{3}{4}\times-\frac{4}{3}=1$
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