simplify: 2/3 + 5/6 - 1/6. a.2and7/18. b.1and7/18. C.3 and 7/18 d.none
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2×4/3×4 + 5×2/6×2
=8/12 + 10/12 = 18 / 12
18/12 - 1/6
18×1/12×1 - 1×2/6×2 = 18/12 - 2/12 = 16/12
= 1 4/12
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