Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 4 - Section 4.7 - Operations on Mixed Numbers - Practice - Page 289: 5



Work Step by Step

$3\times6\frac{7}{15}$ $=\frac{3}{1}\times\frac{97}{15}$ $=\frac{1}{1}\times\frac{97}{5}$ $=\frac{97}{5}$ $=19\frac{2}{5}$ Check your work by estimating $3\times6\frac{7}{15}$ Round the fractions for a quick estimate. $3\times6$ $=18$ $18\approx19\frac{2}{5}$ The estimate is close to the exact value, so our answer is reasonable.
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