25分之2乘以37分之17

问题描述:

25分之2乘以37分之17

  2/25×17/37
  =(2×17)/(5×37×5)
  =34/(185×5)
  =34/925

925分之34

2/25*17/37=(2*37+17*25)/(25*37)=499/925