发布网友
共2个回答
热心网友
5/9*5/6+(4/9)/(5/6)
=25/54+4/9*6/5
=25/54+36/45
=125/270+216/270
=341/270
热心网友
5/9*5/6+(4/9)/(5/6)
=25/54+4/9*6/5