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1/8128+1/254+1/508+1/1016+1/2032+1/4064+1/8128=?1：斜杠前的是分子,斜杠后的是分母.2：用拖式.
题目详情
1/8128+1/254+1/508+1/1016+1/2032+1/4064+1/8128=?
1：
斜杠前的是分子,斜杠后的是分母.
2：
用拖式.
1：
斜杠前的是分子,斜杠后的是分母.
2：
用拖式.
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答案和解析
1/8128+1/254+1/508+1/1016+1/2032+1/4064+1/8128
=1/254+1/508+1/1016+1/2032+1/4064+1/8128+1/8128
=1/254+1/508+1/1016+1/2032+1/4064+1/4064
=1/254+1/508+1/1016+1/2032+1/2032
=1/254+1/508+1/1016+1/1016
=1/254+1/508+1/508
=1/254+1/254
=1/127
=1/254+1/508+1/1016+1/2032+1/4064+1/8128+1/8128
=1/254+1/508+1/1016+1/2032+1/4064+1/4064
=1/254+1/508+1/1016+1/2032+1/2032
=1/254+1/508+1/1016+1/1016
=1/254+1/508+1/508
=1/254+1/254
=1/127
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