把1到9分别入填入等式,使等式成立,( )/( )=( )/( )=( )( )( )/( )( )=2

问题描述:

把1到9分别入填入等式,使等式成立,( )/( )=( )/( )=( )( )( )/( )( )=2

( 4)/( 2)=(6 )/(3 )=( 1)(5 )( 8)/(7 )(9 )=2