Basic College Mathematics (10th Edition)

by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.

Published by Pearson

ISBN 10: 0134467795

ISBN 13: 978-0-13446-779-5

Chapter 2 - Multiplying and Dividing Fractions - 2.8 Multiplying and Dividing Mixed Numbers - 2.8 Exercises - Page 175: 9

Answer

Estimate: $3$ Exact: $4$

Work Step by Step

Estimate: Round the numbers to 3 and 1 and multiply. Exact: Turn numbers into improper fractions: $\frac{28}{9}, \frac{9}{7}$ multiply: $\frac{28}{9}\times\frac{9}{7} = \frac{28}{7}$ Convert to a mixed (or whole) number: $4$

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