Chapter R - Section R.2 - Operations on Real Numbers - R.2 Exercises - Page 21: 108

$-\frac{5}{2}$

$\frac{-\frac{15}{16}}{\frac{3}{8}}=-\frac{15}{16}\times\frac{8}{3}=\frac{-15\times8}{16\times3}=\frac{-120}{48}=-\frac{120}{48}$ $-\frac{120}{48}=-\frac{120\div24}{48\div24}=-\frac{5}{2}$ The numbers being multiplied together have different signs, so the resulting product is negative.