## Basic College Mathematics (10th Edition)

$\displaystyle 5\frac{1}{2}$
We subtract by changing the mixed number fractions to improper fractions: $8\frac{1}{3}-2\frac{5}{6}$ $=\displaystyle \frac{25}{3}-\frac{17}{6}$ $\displaystyle =\frac{50}{6}-\frac{17}{6}$ $\displaystyle =\frac{33}{6}$ $\displaystyle =5\frac{3}{6}$ $\displaystyle =5\frac{1}{2}$