The common denominator of any two or more whole numbers will always be 1.
56
The common denominator of 15 and 9 is 45.
1/7 + 3/8 = 8/56 + 21/56 is the lowest common denominator.
4536
7560
A common denominator is 7.A common denominator is 7.A common denominator is 7.A common denominator is 7.
LCD(28, 56) = 56.
It is 56
168
56
The common denominator of 15 and 9 is 45.
As 2 is a factor of 56, lcd(2, 56) = 56.
1/7 + 3/8 = 8/56 + 21/56 is the lowest common denominator.
It is: 728
1512
56
7560