There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of two or more fractions. Even if you converted your numbers (x) to their fraction equivalents (x/1), the LCD would always be 1.
14.
1862
98
4410
1078
The Least Common Multiple of 98, 28, and 16 is 784.
Least common multiple of 28 42 and 98 is 588.
For 98, 28 and 12 the LCM is: 588
The LCM is: 196
980
7
The lowest common denominator of 347 and 98 is 1.