simplify

1/4+4/9

To simplify the expression 1/4 + 4/9, you need to find a common denominator.

First, we can convert 1/4 into an equivalent fraction with a denominator of 9:
1/4 = 1/4 * 9/9 = 9/36

Now we can rewrite the expression as:
9/36 + 4/9

Since both fractions now have a denominator of 9, we can simply add the numerators:
9/36 + 4/9 = (9 + 16)/36 = 25/36

Therefore, the simplified form of 1/4 + 4/9 is 25/36.