(1/3-3/5+3/10)/(-7/30) 等于多少?

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/20 10:47:01
(1/3-3/5+3/10)/(-7/30) 等于多少?
x){PXXTXN}1|m]}OzaMR>i loX-5t 5! p28]1mhoko @3wr

(1/3-3/5+3/10)/(-7/30) 等于多少?
(1/3-3/5+3/10)/(-7/30) 等于多少?

(1/3-3/5+3/10)/(-7/30) 等于多少?
(1/3-3/5+3/10)/(-7/30)
=(1/3-3/5+3/10)×(-30/7)
=1/3×(-30/7)-3/5×(-30/7)+3/10×(-30/7)
=10/7+18/7-9/7
=19/7