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 is 7.A common denominator is 7.A common denominator is 7.A common denominator is 7.
A common denominator, though not the least, is 63000.
To find a common denominator for 7 and 8, we need to find the least common multiple (LCM) of the two numbers, which is 56. Therefore, a proper fraction with a denominator that is common to 7 and 8 would be any fraction with 56 as the denominator, such as 3/56 or 7/56.
It is 168
56
672
504
LCD(8, 21, 7) = 168.
LCD(10, 8, 7) = 280.