Reducing FractionsDate: 7/4/96 at 0:36:4 From: Anonymous Subject: Reducing Fractions Dear Dr. Math, How do you reduce a fraction with a different denominator? Date: 7/5/96 at 22:14:13 From: Doctor Robert Subject: Re: Reducing Fractions I am not sure exactly what you mean by reduce a fraction with a "different" denominator, but I can tell you how to reduce fractions in general. Factor the numerator and the denominator into their prime factors and then divide the numerator and denominator by any factor they have in common (in other words, cancel like factors). An example: reduce 21/28. This can be written (3)(7)/(2)(2)(7). The factor 7 is in both the numerator and the denominator. You can cancel it out leaving (3)/(2)(2) or 3/4. I hope that this helps. -Doctor Robert, The Math Forum Check out our web site! http://mathforum.org/dr.math/ |
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