Answer
$-\dfrac{14}{15}$
Work Step by Step
Use the rule $\dfrac{a}{b} \div \dfrac{c}{d} =\dfrac{a}{b} \cdot \dfrac{d}{c}$ to obtain:
$=-\dfrac{7}{8} \cdot \dfrac{16}{15}$
Cancel common factors to obtain:
$\require{cancel}
\\=-\dfrac{7}{\cancel{8}} \cdot \dfrac{\cancel{16}2}{15}$
Multiply the numerators together and the denominators together to obtain:
$=-\dfrac{7(2)}{1(15)}
\\=-\dfrac{14}{15}$
