Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - 5.3 The Rational Numbers - Exercise Set 5.3 - Page 284: 9

Answer

$\dfrac{9}{10}$

Work Step by Step

Reduce a number to its lowest terms by factoring the numerator and the denominator and then cancelling common factors: $\require{cancel}=\dfrac{9(38)}{10(38)} \\=\dfrac{9\cancel{(38)}}{10\cancel{(38)}} \\=\dfrac{9}{10}$
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