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If those are the denominators, then the the negative part of -15 should be transferred to the numerator, eg if the fraction is 4/(-15) then make it (-4)/15, or if it is (-4)/(-15) make it (--4)/15 = 4/15.

Then the lcm of 15 and 10 is 30.

(Otherwise you are likely to have trouble in getting your signs right if you use a negative denominator.)

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30

Q: What is the least common denominator of -15 and 10?

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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.

least common denominator for 15 and 10 is 30, so 9/15 = 18/30 and 7/10 = 21/30

A common denominator, though not the least, is 150.

The least common denominator is 120.

The greatest common denominator is infinite. The least common denominator is 45.

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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.

60 is the least common denominator of 3 4 5 6 10 and 15.

least common denominator for 15 and 10 is 30, so 9/15 = 18/30 and 7/10 = 21/30

The least common denominator (LCD) is 1.

The least common denominator is 120.

A common denominator, though not the least, is 150.

15

The greatest common denominator is infinite. The least common denominator is 45.

The factors of 15 are 1,3,5, and 15. In order to find the least common

A common denominator, though not the least, is 12960.

A common denominator, though not the least one, is 180.

There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.