# Chapter 2 - Real Numbers - 2.1 - Rational Numbers: Multiplication and Division - Problem Set 2.1: 89

#### Work Step by Step

This is showing that, in division and multiplication, it does not matter where the $-1$ is. In other words, we can multiply the numerator and the denominator of a fraction by -1 or factor the -1 out of the fraction, and the answer will not change.

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