Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter R - Section R.2 - Operations on Real Numbers - R.2 Exercises - Page 21: 102



Work Step by Step

$\frac{4}{3}(-\frac{9}{20})(-\frac{5}{12})=\frac{4\times-9\times-5}{3\times20\times12}=\frac{180}{720}$ $\frac{180}{720}=\frac{180\div180}{720\div180}=\frac{1}{4}$ The two negative signs in the numerator cancel out, so the resulting product is positive.
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