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(2/3-1/2)-(1/3-5/6)=?

题目详情
(2/3-1/2)-(1/3-5/6)=?
▼优质解答
答案和解析
(2/3-1/2)-(1/3-5/6)
=2/3-1/2-1/3+5/6
=4/6-3/6-2/6+5/6
=2/3
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