15
3
It is: 15
3
It is 120.
15
945 is the lowest common denominator. 3 is the greatest common factor.
LCD(3, 12, 15) = 60
20, although if you reduced 15/20 to 3/4, the common denominator would be 4.
15
It is 3
60 is the least common denominator of 3 4 5 6 10 and 15.