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: 7

Answer

$\dfrac{5}{9}$

Work Step by Step

Reduce a number to its lowest terms by factoring the numerator and the denominator and then cancelling common factors: $\require{cancel}=\dfrac{5(12)}{9(12)} \\=\dfrac{5\cancel{(12)}}{9\cancel{(12)}} \\=\dfrac{5}{9}$
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