1/6+1/18+1/36+1/60+1/90=?
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/22 12:47:36
1/6+1/18+1/36+1/60+1/90=?
另外要写过程的!
另外要写过程的!
![1/6+1/18+1/36+1/60+1/90=?](/uploads/image/z/17216812-28-2.jpg?t=1%2F6%2B1%2F18%2B1%2F36%2B1%2F60%2B1%2F90%3D%3F)
1/6+1/18+1/36+1/60+1/90
=3/18+1/18+1/36+1/60+1/90
=2/9+1/36+1/60+1/90
=8/36+1/36+1/60+1/90
=1/4+1/60+1/90
=15/60+1/60+1/90
=4/15+1/90
=24/90+1/90
=25/90
=5/18
=3/18+1/18+1/36+1/60+1/90
=2/9+1/36+1/60+1/90
=8/36+1/36+1/60+1/90
=1/4+1/60+1/90
=15/60+1/60+1/90
=4/15+1/90
=24/90+1/90
=25/90
=5/18
1/18+1/36+1/60+1/90+1/126+1/168+1/216(用裂项的方式)
(9分之1-6分之1-18分之1)*(负36)=9分之1-6分之1-18分之1*(-36)=9分之1-6分之1+2=18
(1/6+1/12-1/18)×36=()用简便运算
有理数乘法:1、(1/9-1/6-1/18)*36=、2、(1/4-1/2-1/8)*128=、3、【9*(-4)】*(
(1/90+1/30)30+1/90*9+(1/90+1/60)X=1 X=?解方程,
120*18%/36%*(1/3)=过程
5/6+5/18+5/36+1/12+1/18+5/126+5/168+5/216+1/54=?
1/3 + 1/6 + 1/10 + 1/15 + 1/21 + 1/28 + 1/36 + 1/45 + 1/55=?
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=多少
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90=______
(2/45-1/90+1/36)*180