Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 2 - Multiplying and Dividing Fractions - Review Exercises - Page 191: 49

Answer

Estimate = 6 Exact = $6\frac{7}{8}$

Work Step by Step

$5\frac{1}{2}.1\frac{1}{4}$ First we need to find Estimate: $5\frac{1}{2}$ rounded to 6 $1\frac{1}{4}$ rounded to 1 6$\times$1=6 (Estimate) Now we need to find Exact: $5\frac{1}{2}.1\frac{1}{4}$ = $\frac{11}{2}\times\frac{5}{4}$ = $\frac{11\times5}{2\times4}$ = $\frac{55}{8}$ = $6\frac{7}{8}$
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