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 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.
The least common denominator for fractions with those denominators (11, 8 and 6) is 264.
121
Answer: 55
55
264
550
88
88
22