5.69/4+22/52.25

来源：学生作业帮助网编辑：六六作业网时间：2024/12/24 20:24:47

5.6*9/4+22/5*2.255.6*9/4+22/5*2.255.6*9/4+22/5*2.255.6×9/4+22/5×2.25=5.6×9/4+4.4×9/4=(5.6+4.4)×9/4=1

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

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