What numbers are a distance of 2/3 unit from 1/2 on a number line

-1/6 unit and 7/6 unit are both 2/3 unit from 1/2 unit.

Step-by-step explanation:

1/2 unit is the "center." We first add 2/3 unit to 1/2 unit, obtaining 7/6 unit, and then subtract 2/3 unit from 1/2 unit, obtaining - 1/6 unit. Both of these results are a distance of 2/3 unit from 1/2 unit.