2÷(2又2/9*4/5+2又2/9-1/5*2又2/9)*9/20简算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/27 12:31:59
2÷(2又2/9*4/5+2又2/9-1/5*2又2/9)*9/20简算2÷(2又2/9*4/5+2又2/9-1/5*2又2/9)*9/20简算2÷(2又2/9*4/5+2又2/9-1/5*2又2/9

2÷(2又2/9*4/5+2又2/9-1/5*2又2/9)*9/20简算
2÷(2又2/9*4/5+2又2/9-1/5*2又2/9)*9/20简算

2÷(2又2/9*4/5+2又2/9-1/5*2又2/9)*9/20简算
2÷(2又2/9*4/5+2又2/9-1/5*2又2/9)*9/20
=2÷【20/9*(4/5+1-1/5)】*9/20
=2÷【20/9*8/5】*9/20
=2÷32/9*9/20
=2×9/32×9/20
=81/320

2÷(2又2/9*4/5+2又2/9-1/5*2又2/9)*9/20
=2÷【20/9*(4/5+1-1/5)】*9/20
=2÷【20/9*8/5】*9/20
=2÷32/9*9/20
=2×9/32×9/20
=81/320