What is the calculation of 2 over3 plus 1 over 6 plus 1 over 6 plus?

To calculate 2/3 + 1/6 + 1/6, we first need to find a common denominator for the fractions, which in this case is 6. Then, we convert each fraction to have a denominator of 6: 2/3 becomes 4/6, and 1/6 + 1/6 remains as 1/6 + 1/6. Adding these fractions together gives us 4/6 + 1/6 + 1/6 = 6/6, which simplifies to 1. Therefore, the calculation of 2/3 + 1/6 + 1/6 is equal to 1.