The least common multiple (LCM) of 2 and 6 is 6.
To add these two fractions, we need to rename them so they have a common denominator of 6.
1/2 = 3/6
1/6 = 1/6
Now we can add them together:
3/6 + 1/6 = 4/6
Simplifying 4/6 gives us 2/3.
Therefore, 1/2 + 1/6 = 2/3.