#### Answer

Estimate $3 \frac{1}{2}$
Exact $3 \frac{7}{16}$

#### Work Step by Step

$6 \frac{7}{8} \div 2$
Estimate
$7 \div 2$ = $3 \frac{1}{2}$
Exact
$6 \frac{7}{8} \div 2$ = $\frac{55}{8} \div \frac{2}{1}$ = $\frac{55}{8} \times \frac{1}{2}$ = $\frac{55}{16}$ = $3 \frac{7}{16}$