2-(1/5+1/3)(3/4-3/5)÷7/10(2/3+2/9)÷20/211-5/14÷5/71/4÷(2/3+1/2)*4/5[8/15-(4/5-3/10]*15/14谁算出这些我加100分!
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 03:07:09
![2-(1/5+1/3)(3/4-3/5)÷7/10(2/3+2/9)÷20/211-5/14÷5/71/4÷(2/3+1/2)*4/5[8/15-(4/5-3/10]*15/14谁算出这些我加100分!](/uploads/image/z/769491-27-1.jpg?t=2-%281%2F5%2B1%2F3%29%283%2F4-3%2F5%29%C3%B77%2F10%282%2F3%2B2%2F9%29%C3%B720%2F211-5%2F14%C3%B75%2F71%2F4%C3%B7%282%2F3%2B1%2F2%29%2A4%2F5%5B8%2F15-%284%2F5-3%2F10%5D%2A15%2F14%E8%B0%81%E7%AE%97%E5%87%BA%E8%BF%99%E4%BA%9B%E6%88%91%E5%8A%A0100%E5%88%86%21)
2-(1/5+1/3)(3/4-3/5)÷7/10(2/3+2/9)÷20/211-5/14÷5/71/4÷(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)
(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)(3/4-3/5)÷7/10(2/3+2/9)÷20/211-5/14÷5/71/4÷(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