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 - 5.5 Real Numbers and Their Properties; Clock Addition - Exercise Set 5.5: 79

Answer

The rational numbers are a subset of the real numbers because all rational numbers are real numbers.

Work Step by Step

Rational numbers are said to be a subset of the real numbers because all rational numbers are real numbers. In other words, by saying that rational numbers are a subset of real numbers, we are saying that all rational numbers are real numbers.
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