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rational equation

Postby Motherof8 on Mon May 02, 2011 2:42 am

What should you multiply to get rid of the denominators in this equation: 1/21 + 1/b = 1/b-6.25?
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Postby stapel_eliz on Mon May 02, 2011 10:33 am

Motherof8 wrote:What should you multiply to get rid of the denominators in this equation: 1/21 + 1/b = 1/b-6.25?

You should multiply by the lowest common denominator (or, which is the same thing, the least common multiple of the three denominators). :wink:
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