(9分之7—6分之5+18分之3)/18分之1—1.45*6+3.95*6

问题描述:

(9分之7—6分之5+18分之3)/18分之1—1.45*6+3.95*6

原式=(14-15+3)-(1.45+3.95)*6
=2-5.4*6
=2-32.4
=-30.4