whats the least common denominator for 2 ∕3, 5 ∕6, and 9 ∕4

Finding the least common denominator-

What is the smallest number that all denominators can go into? Well I see that the 2/3 has a relation to 5/6. (3 * 2 = 6).

4 (9/4) does not have a relation to the 6 in 5/6. So, what is the smallest number that 6 and 4 can go into? I see that it is 12. So the answer is 12.

All three numbers, 4, 6, and 3 can go into 12 and 12 is the smallest.