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OpenStudy (anonymous):
what is the least common denominator of 2,3,and 15
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OpenStudy (anonymous):
since 15 is an odd number and it must share a common denominator with 2, we know it will be at least 30 (2*15)
OpenStudy (anonymous):
we know 15=3*5, so 30 will work for 3 as well
OpenStudy (anonymous):
so 30 is our LCD 2*15=30 3*10=30 15*2=30
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