17/255/37+8/2517/37+17/37*2/25

来源：学生作业帮助网编辑：六六作业网时间：2024/12/20 05:17:21

17/25*5/37+8/25*17/37+17/37*2/2517/25*5/37+8/25*17/37+17/37*2/2517/25*5/37+8/25*17/37+17/37*2/2517/2

17/25*5/37+8/25*17/37+17/37*2/25
17/25*5/37+8/25*17/37+17/37*2/25

17/25*5/37+8/25*17/37+17/37*2/25
17/25×5/37+8/25×17/37+17/37×2/25 =17/25×5/37+17/25×8/37+17/25×2/37 =17/25×（5/37+8/37+2/37） =17/25×15/37 =51/185