This is like looking for a common denominator.
1/12 + 1/9 your lowest common denominator would be 36 because both numbers go into 36
If the lowest common multiple is 36 then the other number could be 9.
The lowest common multiple of two numbers is 36, one number is 12, what might the other number be?
3 answers
I think it's 9
I think it 18