简便计算下题.1/2-1/3+1/4-1/5+1/6-1/12
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:2024/07/03 14:10:44
简便计算下题.
1/2-1/3+1/4-1/5+1/6-1/12
1/2-1/3+1/4-1/5+1/6-1/12
![简便计算下题.1/2-1/3+1/4-1/5+1/6-1/12](/uploads/image/z/12182114-2-4.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E4%B8%8B%E9%A2%98.1%2F2-1%2F3%2B1%2F4-1%2F5%2B1%2F6-1%2F12)
1/2-1/3+1/4-1/5+1/6-1/12
=1/2-1/3+1/4-1/5+(1/2-1/3)-(1/3-1/4)
=1/2-1/3+1/4-1/5+1/2-1/3-1/3+1/4
=(1/2+1/2)-(1/3+1/3+1/3)+(1/4+1/4)-1/5
=1-1+1/2-1/5
=5/10-2/10
=3/10
=1/2-1/3+1/4-1/5+(1/2-1/3)-(1/3-1/4)
=1/2-1/3+1/4-1/5+1/2-1/3-1/3+1/4
=(1/2+1/2)-(1/3+1/3+1/3)+(1/4+1/4)-1/5
=1-1+1/2-1/5
=5/10-2/10
=3/10
简便计算下题.1/2-1/3+1/4-1/5+1/6-1/12
用简便算法计算下题 5/4*4+5/2*2+5/1*16=?
1/13+12/13*(5/2-1/3)可以简便计算就简便计算
(1+3+5+...+99)-(2+4+6+...+98)简便计算
5/6-(3/4-1/2)简便计算
简便计算5/6-(3/4-1/2)=
简便计算:1-2+3-4+5-6+...+59-60
简便计算.1题
怎么简便计算 3/4+7/13-1/4+6/13怎么简便计算
能简便计算要简便计算 6/5-(3/1+10/3)=
计算:(2/5+1/3)*5/22,能简便的要简便计算
(5/7)+(1/8)+(3/8)+(2/7)简便计算 6.4X101简便计算