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:作业帮 时间:2024/07/07 11:31:15
![2÷(2又2/9*4/5+2又2/9-1/5*2又2/9)*9/20简算](/uploads/image/z/2516876-44-6.jpg?t=2%C3%B7%EF%BC%882%E5%8F%882%2F9%2A4%2F5%2B2%E5%8F%882%2F9-1%2F5%2A2%E5%8F%882%2F9%EF%BC%89%2A9%2F20%E7%AE%80%E7%AE%97)
x)3:FZ&P~Ou
MI*'K~
ljy0 qD,M1A"L70!C~qAbԟ6`ΐr5 @
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