What is 1 3/5+ one and 1/3 equals one and 9/15+ one and 5/15 what is the sum?

To solve this problem, we first need to simplify the fractions.

1 3/5 can be written as an improper fraction: 5/5 + 3/5 = 8/5

Similarly, one and 1/3 can be written as an improper fraction: 3/3 + 1/3 = 4/3

Now, let's add the fractions:

8/5 + 4/3 = (8 * 3)/(5 * 3) + (4 * 5)/(3 * 5)
= 24/15 + 20/15

Finally, we can add the fractions:

24/15 + 20/15 = (24 + 20)/15 = 44/15

So, the sum is 44/15.