The common denominator of any two or more whole numbers, such as 7 8 13 and 9, 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.
A common denominator, though not the least, is 63000.
82
672
504
The LCD for 4/7 and 7/8 is 56.
1 is the only common denominator.
The least common denominator is 280.
The Least Common Denominator of 3/4 and 7/8 is 8.
A common denominator, though not the least, is 63000.
It is 56
82
It is 168
56
672
504
LCD(13, 16, 8) = 208
LCD(8, 21, 7) = 168.