The common denominator of any two or more whole numbers will always be 1.
what is a common denominator for 6, 9 and 3
The greatest common denominator of 63, 72 and 24 is 3.
You need at least two numbers to find something in common. If that's 6 and 3, the LCD is 6.
The least common denominator (LCD) is 1.
The lowest common denominator is 6
3
the number 9
7
63
It is: 63
63 is their lowest common denominator, so you should use that. 2/7 = 18/63 and 4/9 = 28/63
The common denominator of 5 and 6 will be 30.