6×7/12—9/20×6+11/30×6

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/27 06:53:43

6×7/12—9/20×6+11/30×6

6×7/12—9/20×6+11/30×6
=42/12+0.45*6+11/5
=3.5+2.7+2.2
=8.4