Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 2 - Multiplying and Dividing Fractions - 2.8 Multiplying and Dividing Mixed Numbers - 2.8 Exercises - Page 175: 14

Answer

Estimate: $12$ Exact: $16\frac{1}{2}$

Work Step by Step

Estimate: round the three numbers to 6, 1, and 2 and multiply. Exact: change the numbers into improper fractions: $\frac{11}{2}, \frac{4}{3}, \frac{9}{4}$ Multiply: $\frac{11}{2}\times\frac{4}{3} = \frac{22}{3}$ $\frac{22}{3}\times\frac{9}{4} = \frac{33}{2}$ Change into a mixed (or whole) number: $16\frac{1}{2}$
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