[1-(1/4-0.1÷2)]×5/13
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 01:24:36
[1-(1/4-0.1÷2)]×5/13[1-(1/4-0.1÷2)]×5/13[1-(1/4-0.1÷2)]×5/13(1/4-0.1÷2)*5/13=(1/4-1/20)*5/13=1/4*5/1
[1-(1/4-0.1÷2)]×5/13
[1-(1/4-0.1÷2)]×5/13
[1-(1/4-0.1÷2)]×5/13
(1/4-0.1÷2)*5/13
=(1/4-1/20)*5/13
=1/4*5/13-1/20*5/13
=5/52-1/52
=1/13