2/3-5/6+1/3=?要简算
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2/3-5/6+1/3=?要简算2/3-5/6+1/3=?要简算2/3-5/6+1/3=?要简算2/3-5/6+1/3=(2/3+1/3)-5/6=1-5/6=1/61/62/3-5/6+1/3=2/
2/3-5/6+1/3=?要简算
2/3-5/6+1/3=?要简算
2/3-5/6+1/3=?要简算
2/3-5/6+1/3=(2/3+1/3)-5/6=1-5/6=1/6
1/6
2/3-5/6+1/3
=2/3+1/3-5/6
=1-5/6
=1/6
2/3-5/6+1/3
=2/3+1/3-5/6
=1-5/6
=1/6