It is 36.
1
The common denominator of 5 over 8 and 4 over 9 is 72.
Well, darling, the common denominator for 1/3 and 4/9 is 9. You see, to add or subtract fractions, you need a common denominator, and in this case, multiplying 3 by 3 gives you 9. So, there you have it, simple math for a simple question.
36
36
It is: 180
LCD(4, 9) = 36.
36
756
36
72
It is: 72