2/3 + - 1/16 = What is the fraction?

Find a common denominator for the two fractions to be able to combine them.

Let's use 48.

Multiply both parts of 2/3 by 16, then multiply both parts of - 1/16 by 3.

32/48 + - 3/48

This is the same as subtracting the second fraction from the first, so let's write it like that.

(32-3) / 48

29/48

Since 29 is a prime number, the fraction cannot be reduced, so that is the final answer.