20 and 14 are both integers. The common denominator of 20/1 and 14/1 is 1. The least common multiple is 140.
1360
42
42
56
A single number cannot have anything in common. To find a lowest common denominator, you need to be adding or subtracting at least two fractions.
A common denominator, though not the least one, is 14*49 = 686.
A common denominator, though not the least, is 1700.
The common denominator is 28.
The greatest common denominator is infinite.
A common denominator, though not the least, is 168.
Their product. If that's 1/2 and 1/7, the LCD is 14.
A common denominator, though not the least one, is 14*12 = 168.
20 and 14 are both integers. The common denominator of 20/1 and 14/1 is 1. The least common multiple is 140.
The greatest common denominator of any set of denominators is infinite.
51 is.
1