1/20+1/30+1/42+1/56=1/20+1/30+1/42+1/56=
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/14 11:20:52
1/20+1/30+1/42+1/56=1/20+1/30+1/42+1/56=
1/20+1/30+1/42+1/56=
1/20+1/30+1/42+1/56=
1/20+1/30+1/42+1/56=1/20+1/30+1/42+1/56=
1/20=1/(4*5)=1/4-1/5
1/20+1/30+1/42+1/56=(1/4-1/5)+(1/5-1/6)+(1/6-1/7)+(1/7-1/8)=1/4-1/8=1/8
1/20+1/30+1/42+1/56=1/20+1/30+1/42+1/56=
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+56/1=
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=?
1/12+1/20+1/30+1/42+1/56+1/72+1/90=?
1/6+1/12+1/20+1/30+1/42+1/56+1/72=?
1/2+1/6+12/1+20/1+30/1+42/1+56/1=?
1/6+1/12+1/20+1/30+1/42+1/56=?简便记算
1/6+1/12+1/20+1/30+1/42+1/56=?
1/20+1/30+1/42+1/56简便计算,
1/20+1/30+1/42+1/56+.+1/132=?简便运算谢谢了,
20分之1+30分之1+42分之1+56分之1+72分之1=?
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90==
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90=
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+190+1/110=?
1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+.1/132=快
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90=多少