Answer
Estimate=2
Exact=1$\frac{15}{16}$
Work Step by Step
Estimate:
2$\frac{1}{2}$$\approx$3
$\frac{9}{16}$$\approx$1
3-1=2
Exact:
2$\frac{1}{2}$-$\frac{9}{16}$
2$\frac{8}{16}$-$\frac{9}{16}$
1$\frac{24}{16}$-$\frac{9}{16}$
1$\frac{15}{16}$