Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 2 - Multiplying and Dividing Fractions - Review Exercises - Page 191: 51


Estimate: 16$\div$3= $5\frac{1}{3}$ Exact : $5\frac{1}{6}$

Work Step by Step

$15\frac{1}{2}\div3$ = $15\frac{1}{2}\div\frac{3}{1}$ First we need to find Estimate: $15\frac{1}{2}$ rounded to 16 $\frac{3}{1}$ rounded to 3 16$\div$3= $5\frac{1}{3}$(Estimate) Now we need to find Exact: $15\frac{1}{2}\div3$ = $\frac{31}{2}\div\frac{3}{1}$ = $\frac{31}{2}\times\frac{1}{3}$ = $\frac{31\times1}{2\times3}$ = $\frac{31}{6}$ = $5\frac{1}{6}$
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