Associated Topics || Dr. Math Home || Search Dr. Math

### Negative/Negative

```
Date: 8/4/96 at 16:1:48
From: Jeffrey Paul Goins
Subject: Negative/Negative

Dear Dr. Math,

Why is a negative divided by a negative a positive?

Levi Goins
```

```
Date: 8/5/96 at 11:29:51
From: Doctor Anthony
Subject: Re: Negative/Negative

Why is a negative divided by a negative positive.

Example:  (-10)/(-5) = +2

Consider (-10)/(-10)  We have a rule that anything divided by itself
is 1. If this rule is to be consistent then (-10)/(-10) = 1.  So for
our problem  (-10)/(-5) = 2*(-5)/(-5) = 2*1 = 2. For consistency of
the rules we must have neg*neg = pos.

-Doctor Anthony,  The Math Forum
Check out our web site!  http://mathforum.org/dr.math/
```
Associated Topics:
Middle School Negative Numbers

Search the Dr. Math Library:

 Find items containing (put spaces between keywords):   Click only once for faster results: [ Choose "whole words" when searching for a word like age.] all keywords, in any order at least one, that exact phrase parts of words whole words

Submit your own question to Dr. Math
Math Forum Home || Math Library || Quick Reference || Math Forum Search