## Basic College Mathematics (10th Edition)

Estimate 800 pounds Exact $833 \frac{1}{3}$ pounds
The weight of the water in the 2 aquariums is $100 \times 8 \frac{1}{3}$. Estimate $100 \times 8 = 800$ Solve $100 \times 8 \frac{1}{3}$ = $100 \times \frac{25}{3}$ = $\frac{2500}{3}$ = $833 \frac{1}{3}$ Check $833 \frac{1}{3} \div 100$ = $\frac{2500}{3} \div 100$ = $\frac{2500}{3} \times \frac{1}{100}$ = $\frac{25}{3} \times \frac{1}{1}$ = $\frac{25}{3}$ = $8 \frac{1}{3}$