19分之18=( )分之( )乘以( )=( )分之( )乘以( )

问题描述:

19分之18=( )分之( )乘以( )=( )分之( )乘以( )

19分之18=(19 )分之(9 )乘以(2 )=(19 )分之( 6)乘以(3 )