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Mathematics 17 Online
OpenStudy (anonymous):

What is the Least Common Denominator (LCD) of five-sixths and seven-ninths?

OpenStudy (amistre64):

one way is to setup an addition of the two, and multiply thru by each denominator in turn and simplify

OpenStudy (amistre64):

5 + 7 = :lcd 6 9 6*5 + 6*7 = 6: lcd 6 9 5 + 2*7 = 6: lcd 3 3*5 + 3*2*7 = 3*6: lcd 3 3*5 + 2*7 = 3*6: lcd

OpenStudy (anonymous):

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