9分之4的倒数比9分之4多百分之几
问题描述：
9分之4的倒数比9分之4多百分之几
1分钟之内
答
[1/(4/9)-4/9]÷4/9
=[9/4-4/9]÷4/9
=65/36x9/4
=65/16
=4.0625
=406.25%