,怎样计算1/2+1/4+1/8+1/31+1/62+1/124+1/248+1/496

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,怎样计算1/2+1/4+1/8+1/31+1/62+1/124+1/248+1/496
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,怎样计算1/2+1/4+1/8+1/31+1/62+1/124+1/248+1/496
,怎样计算1/2+1/4+1/8+1/31+1/62+1/124+1/248+1/496

,怎样计算1/2+1/4+1/8+1/31+1/62+1/124+1/248+1/496
(1/2+1/4+1/8)+(1/31+1/62+1/124+1/248+1/496)
=(1+2+4)/8+(16+8+4+2+1)/496
=7/8+31/496
=434/496+31/496
=465/496