The factors of 4 are: 1, 2, 4
The factors of 8 are: 1, 2, 4, 8
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
Then the greatest common factor is 4.
11/1, 33/1, 66/1
For the denominators (1, 1, 1) the least common multiple (LCM) is 1.
Therefore, the least common denominator is 1.
