Answer
512 bins needed
Work Step by Step
$320 \div \frac{5}{8}$ bins needed
Estimate
$320 \times 1 = 320$
Solve
$320 \div \frac{5}{8}$
Multiply by reciprocal of divisor.
$320 \times \frac{8}{5}$
Reduce by common factor of 5 and multiply.
$64 \times \frac{8}{1}$ = 512 bins needed
Check
$512 \times \frac{5}{8}$
Reduce by common factor of 8 and multiply.
$64 \times \frac{5}{1}$ = 320 tons
