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 285: 117

Answer

The rational numbers in decimal form can be written as \[\frac{6}{11}=0.\overline{54}\,\,\text{and}\,\,\frac{7}{12}=0.58\overline{3}\]. This shows that \[\frac{6}{11}

Work Step by Step

The rational number \[\frac{6}{11}\] can be written in decimal form as follows: \[11\overset{0.545454}{\overline{\left){\begin{align} & 6.000 \\ & \underline{5\,\,5} \\ & \,\,\,\,50 \\ & \underline{\,\,\,\,44} \\ & \,\,\,\,\,\,\,60 \\ & \,\,\,\,\,\,\,\,\,\,\,. \\ & \,\,\,\,\,\,\,\,\,\,\,. \\ \end{align}}\right.}}\] The rational number \[\frac{7}{12}\] can be written in decimal form as follows: \[12\overset{0.583333}{\overline{\left){\begin{align} & 7.000 \\ & \underline{6\,\,0} \\ & \,\,\,100 \\ & \underline{\,\,\,\,\,\,96} \\ & \,\,\,\,\,\,\,40 \\ & \underline{\,\,\,\,\,\,\,36} \\ & \,\,\,\,\,\,\,40 \\ & \,\,\,\,\,\,\,\,\,\,\,. \\ & \,\,\,\,\,\,\,\,\,\,\,. \\ \end{align}}\right.}}\] Thus, the rational numbers in decimal form can be written as \[\frac{6}{11}=0.\overline{54}\,\,\text{and}\,\,\frac{7}{12}=0.58\overline{3}\]. This shows that \[\frac{6}{11}
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