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OpenStudy (anonymous):
I have trouble finding the greatest and least common denominator of numbers, can anyone give me some advise. Such as to find the LCM of set of 42 and 63. I thought the LCM would be 42, but again this is not correct. HELP
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OpenStudy (anonymous):
for the first one is 7 because 7x6=42 & 7x9=63
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