1/6+1/12+1/20+1/30+1/42+1/56

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/05/24 16:05:40

1/6+1/12+1/20+1/30+1/42+1/56
1/8+1/24+1/48+1/80+1/120

(1/2-1/3)+(1/3-1/4)+(1/4-1/5)+(1/5-1/6)+(1/6-1/7)+(1/7-1/8)=1/2-1/8=3/8=0.375
1/8+1/8*1/3+1/8*1/6+1/8*1/10+1/8*1/15
=1/8*(1+1/3+1/6+1/10+1/15)
=1/8*5/3
=5/24

1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72 1/2+1/6+1/12+1/20+1/30+1/42+1/56=? 1/2+1/6+1/12+1/20+1/30+1/42+1/56 简算 1/2+1/6+1/12+1/20+1/30+1/42+1/56 2/1+6/1+12/1+20/1+30/1+42/1+56/1= 1/2-1/6-1/12-1/20-1/30-1/42-1/56等于多少 1/2+1/6+1/12+1/20+1/30+1/42+1/56简算, 1/6+1/12+1/20+1/30+1/42+1/56+.+1/9900 2/1+6/1+12/1+20/1+30/1+42/1+56/1=? 1/2 - 1/6 - 1/12 - 1/20 - 1/30 - 1/42 - 1/56怎么算 1/6+1/12+1/20+1/30+1/42+1/56+1/72 简便计算 1/2+1/6+1/12+1/20+1/30+1/42+1/56=