Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 2 - Multiplying and Dividing Fractions - 2.5 Multiplying Fractions - 2.5 Exercises: 33

Answer

$ \frac{28}{21} \cdot 640 \cdot \frac{15}{32} = 400$

Work Step by Step

$ \frac{28}{21} \cdot 640 \cdot \frac{15}{32} = \frac{28}{21} \cdot \frac{640}{1} \cdot \frac{15}{32} = \frac{28}{21} \cdot \frac{20}{1} \cdot \frac{15}{1} = \frac{4}{3} \cdot \frac{20}{1} \cdot \frac{15}{1} = \frac{4}{1} \cdot \frac{20}{1} \cdot \frac{5}{1} = \frac{4 \cdot 20 \cdot 5}{1} = \frac{400}{1} = 400$
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