8/9*[0.75-(5/16+0.25)]=

问题描述:

8/9*[0.75-(5/16+0.25)]=

8/9*[0.75-(5/16+0.25)]
=8/9*[3/4-(5/16+1/4)]
=8/9*[3/4-5/16-1/4]
=8/9*[2/4-5/16]
=8/9*[8/16-5/16]
=8/9*3/16
=1/6