The answer is 8.
Since there is already a common denominator in the fractions, there is no need to change them. You can add 1/6 and 5/6 to get 6/6, this equals 1. You can then add the whole numbers together, 3 and 4, to get 7. After you have the 7 from the whole numbers, and the 1 from the fractions, you can add them together to get a final answer of 8.