Solve the problem below by finding a common denominator.

4/5 + 1/3

To find a common denominator, we need to find a number that is divisible by both 5 and 3. In this case, the number 15 is divisible by both 5 and 3.

We can rewrite 4/5 and 1/3 with the common denominator of 15:

4/5 = (4/5) * (3/3) = 12/15
1/3 = (1/3) * (5/5) = 5/15

Now we can add the fractions:

12/15 + 5/15 = (12 + 5)/15 = 17/15

Therefore, 4/5 + 1/3 = 17/15.