1/3-1/12-1/20-1/30-1/42

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/07 01:43:32
1/3-1/12-1/20-1/30-1/42

1/3-1/12-1/20-1/30-1/42
1/3-1/12-1/20-1/30-1/42

1/3-1/12-1/20-1/30-1/42
=1/7

结果1/7

什么意思

1/7