Answer
Estimate 900 inches of steel tubing
Exact $877 \frac{1}{2}$ inches of steel tubing
Work Step by Step
$45 \times 19 \frac{1}{2}$ inches of steel tubing
Estimate
Round fractions to the nearest whole number.
$45 \times 20$ = 900 inches of steel tubing
Exact
Convert mixed numbers to improper fractions and multiply.
$\frac{45}{1} \times \frac{39}{2}$ = $\frac{1755}{2}$
Reduce.
$877 \frac{1}{2}$ inches of steel tubing