1/3+1/6+1/12+1/24+1/48要有简算过程

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1/3+1/6+1/12+1/24+1/48要有简算过程
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1/3+1/6+1/12+1/24+1/48要有简算过程
1/3+1/6+1/12+1/24+1/48
要有简算过程

1/3+1/6+1/12+1/24+1/48要有简算过程
1/3+1/6+1/12+1/24+1/48
=(1/3+1/6+1/12+1/24+1/48+1/48)-1/48
=(1/3+1/6+1/12+1/24+1/24)-1/48
=(1/3+1/6+1/12+1/12)-1/48
=(1/3+1/6+1/6)-1/48
=(1/3+1/3)-1/48
=2/3-1/48
=31/48