This cannot be answered properly because at least two numbers are required.
50
If you mean Least Common Multiple; it is 50.
10
200
550
The least common denominator would be 50
That's the least common denominator or LCD.
To find the least common denominator, you simply find the smallest number that can divide into both 50 and 60. So 5 is the smallest number that will divide into 50 and 60. The answer is 5
If that's 5/6 and 10/50, the least common denominator is 150. But since 10/50 = 1/5, the least common denominator is 30.
LCM(50, 13) = 650
LCD(25, 2) = 50.
The least common denominator.