[4又9/5-(2又5/2+0.64)+3又25/1+6/5]*4.5

来源：学生作业帮助网编辑：六六作业网时间：2024/12/28 03:20:20

[4又9/5-(2又5/2+0.64)+3又25/1+6/5]*4.5[4又9/5-(2又5/2+0.64)+3又25/1+6/5]*4.5[4又9/5-(2又5/2+0.64)+3又25/1+6/5

[4又9/5-(2又5/2+0.64)+3又25/1+6/5]*4.5
[4又9/5-(2又5/2+0.64)+3又25/1+6/5]*4.5

[4又9/5-(2又5/2+0.64)+3又25/1+6/5]*4.5
[4又9/5-(2又5/2+0.64)+3又25/1+6/5]*4.5
=[4又9/5+6/5-3.04+3.04]*4.5
=5又18/7*4.5
=5*4.5+18/7*4.5
=22.5+1.75
=24.25