Answer
-16
Work Step by Step
In this problem, we are dividing by a fraction. However, we are never supposed to divide by a fraction. Rather, we must multiply by the reciprocal of the fraction. The reciprocal of a fraction is that fraction with the numerator (top of the fraction) and denominator (bottom of the fraction) switched. Thus, we simplify to find:
$12\div(-3/4)$
=$12\times(-4/3)$
=$-48/3=-16$