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The LCM of 3/7 and 4/m is 7*m if m is not a multiple of 7, and m if m is a multiple of 7.

Q: What is the least common denominator of 3 over 7 and 4 over m?

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The least common denominator of the fractions 3/5 and 5/12 is 60.

The answer is 3 over 8 or 3/8

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At least two fractions are needed to determine a common denominator.

The least common denominator of the fractions 3/5 and 5/12 is 60.

The answer is 3 over 8 or 3/8

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The least common denominator is 3x.

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