The common denominator of any two or more whole numbers, such as 7 9 and 2, 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.
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The least common denominator (LCD) is 630.
126
It is: 630
198
The lowest common denominator of the fractions 2 over 9 and 1 over 6 is 18.