What is 1 and 2/3 + 1 and 1/2?

1 and 2/3 + 1 and 1/2

Change into top-heavy:

5/3 + 3/2

Multiply the first by two and the second by three so they have a common denominator:

10/6 + 9/6

Add the numerators:

19/6

Change back to mixed numbers:

3 and 1/6

The answer is 3 1/6, simplified to the max.