11.
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 will always be 1.
The least common denominator for 4 5 and 11 is 1.
A common denominator, though not the least one, is 110.
A common denominator, though not the least, is 1056.
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
The least common denominator for fractions with those denominators (11, 8 and 6) is 264.
121
Answer: 55
55
264
550
88
88