Answer
Estimate=12 gal
Exact=12$\frac{5}{8}$ gal
Work Step by Step
Estimate:
10$\frac{1}{4}$$\approx$10
13$\frac{1}{2}$$\approx$14
8$\frac{7}{8}$$\approx$9
18$\frac{3}{4}$$\approx$19
12$\frac{3}{8}$$\approx$12
9$\frac{1}{2}$$\approx$10
14$\frac{1}{8}$$\approx$14
100-10-14-9-19-12-10-14=12
Exact:
100-10$\frac{1}{4}$-13$\frac{1}{2}$-8$\frac{7}{8}$-18$\frac{3}{4}$-12$\frac{3}{8}$-9$\frac{1}{2}$-14$\frac{1}{8}$
100-10$\frac{2}{8}$-13$\frac{4}{8}$-8$\frac{7}{8}$-18$\frac{6}{8}$-12$\frac{3}{8}$-9$\frac{4}{8}$-14$\frac{1}{8}$
16-$\frac{27}{8}$
15$\frac{8}{8}$-3$\frac{3}{8}$
12$\frac{5}{8}$
