Could you change both fractions to a denominator of nine add one third and fourth explain?

To add 1/3 and 1/4, we need a common denominator. The least common multiple of 3 and 4 is 12, not 9. We can't easily change both fractions to a denominator of 9 because 9 isn't a multiple of 4.

Let's use the least common denominator (LCD) which is 12:

* 1/3: To get a denominator of 12, we multiply the numerator and denominator by 4: (1/3) * (4/4) = 4/12

* 1/4: To get a denominator of 12, we multiply the numerator and denominator by 3: (1/4) * (3/3) = 3/12

Now we can add the fractions:

4/12 + 3/12 = 7/12

Therefore, 1/3 + 1/4 = 7/12