作业帮2-(1/5+1/3)
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/05/26 16:08:12
2-(1/5+1/3)
(3/4-3/5)÷7/10
(2/3+2/9)÷20/21
1-5/14÷5/7
1/4÷(2/3+1/2)*4/5
[8/15-(4/5-3/10]*15/14
谁算出这些我加100分!
(3/4-3/5)÷7/10
(2/3+2/9)÷20/21
1-5/14÷5/7
1/4÷(2/3+1/2)*4/5
[8/15-(4/5-3/10]*15/14
谁算出这些我加100分!
2-(1/5+1/3)=2-8/15=30/15-8/15=22/15
(3/4-3/5)÷7/10=3/20 *10/7=3/14
(2/3+2/9)÷20/21=8/9*21/20=14/15
1-5/14÷5/7=1-5/14*7/5=1-1/2=1/2
1/4÷(2/3+1/2)*4/5=1/4÷7/6*4/5=1/4*4/5*6/7=6/35
[8/15-(4/5-3/10)]*15/14=(8/15-1/2)*15/14=1/30*15/14=1/28
(3/4-3/5)÷7/10=3/20 *10/7=3/14
(2/3+2/9)÷20/21=8/9*21/20=14/15
1-5/14÷5/7=1-5/14*7/5=1-1/2=1/2
1/4÷(2/3+1/2)*4/5=1/4÷7/6*4/5=1/4*4/5*6/7=6/35
[8/15-(4/5-3/10)]*15/14=(8/15-1/2)*15/14=1/30*15/14=1/28
2-(1/5+1/3)
2^1/2 、3^1/3 和5^1/5
(1+1/2+1/3+1/4+1/5)*(1/3+1/4+1)-(1+1/3+1/4)*(1/2+1/3+1/4+1/5
-1/2,+1/3,-1/4,+1/5,-1/6,.
简算：（1＋1/2+1/3+1/4)×(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)×(1/
（1） 1,1/3,1/5,1/7,1/9 （2）- 1/2*1,1/2*2,- 1/2*3,1/2*4,-1/2*5
1+2+3-4-5+1+1+2+3=
/1/3-1/2/+/1/4-1/3/+/1/5-1/4/+.+/1/10-1/9/
1 2 3 4 5
(1),(2),(3),5题.
.1,2,3,4,5,
1、2、3、5,