x*4/9等于5/12要有过程的!
问题描述:
x*4/9等于5/12要有过程的!
答
X*4/9=5/12
X=5/12*9/4
X =5*9/48
X=45/48
x=15/16
答
x*4/9=5/12
x=5/12*9/4
x=15/16