1/12 + 4/9 add and simplify

To add these fractions, we need to find a common denominator. The least common multiple of 12 and 9 is 36.

1/12 + 4/9 can be rewritten as 3/36 + 16/36.

When we add these fractions together, we get:
3/36 + 16/36 = 19/36

Therefore, 1/12 + 4/9 simplifies to 19/36.