5分之3*3分之1/5分之3*3分之1简便计算
问题描述:
5分之3*3分之1/5分之3*3分之1简便计算
答
(3/5)*(1/3)/(3/5)*(1/3)=(3/5)*(1/3)*(5/3)*(1/3)=((3*1)/(5*3)))*(5/3)*(1/3)=(1/5)*(5/3)*(1/3)=((1*5)/(5*3))*(1/3)=(1/3)*(1/3)=1/9