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.
The least common denominator is 60.
The least common denominator for 12 and 16 is 48.
The LCM of 3, 6, and 12 is 12.The least common denominator is the same as the least common multiple.The least common denominator is the smallest multiple divisible by 3, 6, and 12. Since 12 is divisible by 3, 6, and 12, and the smallest multiple of 12 is 12 x 1 = 12, that is the least common denominator or least common multiple.
A common denominator, though not the least one, is 12*20 = 240.
The least common denominator of 9, 12, and 16 is 144.
The least common denominator is 60.
The least common denominator for 12 and 16 is 48.
The LCM of 3, 6, and 12 is 12.The least common denominator is the same as the least common multiple.The least common denominator is the smallest multiple divisible by 3, 6, and 12. Since 12 is divisible by 3, 6, and 12, and the smallest multiple of 12 is 12 x 1 = 12, that is the least common denominator or least common multiple.
A common denominator, though not the least, is 168.
A common denominator, though not the least, is 9720.
A common denominator, though not the least one, is 12*20 = 240.
12.
12
The least common denominator of 9, 12, and 16 is 144.
12
12
The least common denominator is 144.