2/3+1/15

To add the fractions 2/3 and 1/15, we need to find a common denominator. The least common denominator (LCD) is 15 because both 3 and 15 divide evenly into 15.

Now let's convert the fractions to have the same denominator:

2/3 = (2/3)*(5/5) = 10/15
1/15 = (1/15)*(1/1) = 1/15

Now that we have both fractions with a denominator of 15, we can add them:

10/15 + 1/15 = 11/15

Therefore, 2/3 + 1/15 = 11/15.