The common denominator of any two or more whole numbers, such as 9 11 and 4, will always be one (1) because 'common denominator' refers to the denominators of two or more fractions or mixed numbers, not whole numbers. So, a set of whole numbers (x,x) would have to be converted to their fraction equivalents, i.e., x/1, which will always yield a denominator of 1.
1188 is a common denominator for 9,11,12
since 9 and 11 have no common factors, the LCD is 99
LCD(8, 11, 9) = 792
1
5148
1188 is a common denominator for 9,11,12
since 9 and 11 have no common factors, the LCD is 99
If 9, 11, and 16 are all denominators, you could multiply them together to come up with a common denominator of 1,584.
792
693
198
1
LCD(8, 11, 9) = 792
It is 36.
1
The common denominator of 5 over 8 and 4 over 9 is 72.
Well, darling, the common denominator for 1/3 and 4/9 is 9. You see, to add or subtract fractions, you need a common denominator, and in this case, multiplying 3 by 3 gives you 9. So, there you have it, simple math for a simple question.