63×(4/9+5/7)简算

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/06 10:53:50

63×(4/9+5/7)简算

63×(4/9+5/7)
=63×4/9+63×5/7
=7×4+9×5
=28+45
=73

63×(4/9+5/7)
=63×4/9+63×5/7
=7×4+9×5
=28+45
=73