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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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What is the least common denominator of 6 10 and 15?
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.
What is the least common denominator for 9 over 15 and 7 over 10?
least common denominator for 15 and 10 is 30, so 9/15 = 18/30 and 7/10 = 21/30
What is the common denominator of 25 And 15?
A common denominator, though not the least, is 150.
What is common denominator for 15 and 8?
The least common denominator is 120.
What is the greatest common denominator of 9 and 15?
The greatest common denominator is infinite. The least common denominator is 45.
