The least common denominator (LCD) is 1.
You need at least two fractions to find a common denominator.
63
it's 63
126
63
63
504 9*56 = 504 8*63 = 504
63
63
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of two or more fractions. Even if you converted your numbers (x) to their fraction equivalents (x/1), the LCD will always be 1.If the 7 and 9 are denominators, the LCD is 63.
The greatest common denominator of 63, 72 and 24 is 3.