I think you mean least common denominator.
7 has no factors (ie, no numbers multiply together to give 7)
7 = 7
6 = 2 x 3
4 = 2 x 2
3 has no factors
3 = 3
5 has no factors
5 = 5
Altogether, we need 2 2's (to have enough for the 4), just one 3 (enough for both the 3 itself and the 6), just one 5 (enough for the 5 itself), and just one 7 (for the 7 itself).
2 x 2 x 3 x 5 x 7 = 420
60 is the least common denominator of 3 4 5 6 10 and 15.
1 * * * * * 60
The common denominator will be the LCM of these numbers, which is 120.
The LCD of 3/4 and 4/5 is 20.
60
The common denominator of 5/8 and 3/4 is 32.The lowest common denominator (LCD) is 8.The highest common denominator (HCD) is 32.
60
It is 60.
The LCD of 3, 4 and 5 is 60.
A common denominator, though not the least one, is 120.
Sir/Ma'am, denominator are fractions, so the is no common denominator. But the least common multiples is 30
60 is the least common denominator of 3 4 5 6 10 and 15.
15
1 * * * * * 60
60
It is 60.
The common denominator will be the LCM of these numbers, which is 120.