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if you mean for 1/3 and 1/12, then to find common denominators, you just list multiples of the denominators 3 and 12.

for 3 :3, 6, 9, 12...

for 12:12, 24, 36...

12 is the smallest number in both lists, so it is the least common denominator.

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13y ago
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Q: What is a explanation for the least common denominator for 3 and 12?
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