Dividing by a Negative FractionDate: 01/24/2002 at 21:08:27 From: Krys Subject: Dividing fractions I understand how to divide fractions, but what if one of them is negative? What do I do? Date: 01/24/2002 at 23:23:08 From: Doctor Peterson Subject: Re: Dividing fractions Hi, Krys. Whenever you divide or multiply any kind of signed numbers, you can do it in two steps. First do the multiplication or division, ignoring the signs. Then look at the signs, and follow the rule: if the two signs are the same, the sign of the result is positive, otherwise it's negative. For example, 3/4 divided by -1/2: Numbers: 3/4 / 1/2 = 3/4 * 2/1 = 3/2 = 1 1/2 Signs: + / - = - So the quotient is -1 1/2. - Doctor Peterson, The Math Forum http://mathforum.org/dr.math/ |
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