Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - Chapter Review - Page 70: 34


Irrational number

Work Step by Step

$\sqrt (2/3)$ is an unending decimal, so it cannot be written as a fraction of two integers, making it only an irrational number. Note, whole numbers, natural numbers, and integers all cannot be irrational numbers, so these possibilities are eliminated.
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