18
What would be the ideal Common Denominator for 2 and 4?
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The least common denominator of 6,7, and 8 is the least common multiple of those numbers. This is 168.
60 is the least common denominator of 3 4 5 6 10 and 15.
18
18
18
18
72
18 3*6 = 18 2*9 = 18
1008
LCD(9, 6) = 18
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the least common multiple of 15,9,and 12 is 180.
Answer: 30 If those numbers are denominators, the least common denominator is the least common multiple of the three. In this case, 30 is the LCM of 6, 10 and 15, so 30 is the least common denominator.
A common denominator, though not the least one, is 6*4 = 24.