2/3-1/6-1/12-1/24-1/48-1/96省略号等于多少
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1/6+1/12+1/24+1/48+1/96+1/198 =1/6+1/12+1/24+1/48+1/96+1/198+1/198-1/198 =1/6+1/12+1/24+1/48+1/96+1/96-1/198 =1/6+1/12+1/24+1/48+1/48-1/198 =1/6+1/12+1/24+1/24-1/198 =1/3-1/198 =65/198
咨询记录 · 回答于2021-07-09
2/3-1/6-1/12-1/24-1/48-1/96省略号等于多少
1/6+1/12+1/24+1/48+1/96+1/198 =1/6+1/12+1/24+1/48+1/96+1/198+1/198-1/198 =1/6+1/12+1/24+1/48+1/96+1/96-1/198 =1/6+1/12+1/24+1/48+1/48-1/198 =1/6+1/12+1/24+1/24-1/198 =1/3-1/198 =65/198
再用2/3-65/198=67/198