Answer:
-1/6 and 1 1/6
Explanation:
So add 2/3 to 1/2, and subtract 2/3 from 1/2.
To do this, convert to /6:
2/3 = 4/6
1/2 = 3/6
3/6 + 4/6 = 7/6 = 1 1/6
3/6 - 4/6 = -1/6
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