Chapter 1 - Introduction to Algebraic Expressions - 1.7 Multiplication and Division of Real Numbers - 1.7 Exercise Set - Page 58: 110

$-\dfrac{9}{8}$

The given expression, $ \dfrac{3}{4}\div\left( -\dfrac{2}{3} \right) $, simplifies to \begin{array}{l}\require{cancel} \dfrac{3}{4}\cdot\left( -\dfrac{3}{2} \right) \\\\= \dfrac{3(-3)}{4(2)} \\\\= \dfrac{-9}{8} \\\\= -\dfrac{9}{8} .\end{array}