5.6*9/4+22/5*2.25

来源：学生作业学帮网 编辑：学帮网 时间：2024/05/15 10:09:47

5.6*9/4+22/5*2.25

5.6×9/4+22/5×2.25
=5.6×9/4+4.4×9/4
=(5.6+4.4)×9/4
=10×9/4
=45/2

5.6*9/4+22/5*2.25
=22.5