12 ÷( )= 6 /( )= ( )/ 5 = 0.6 = ( )÷ 8 = ( )%

问题描述:

12 ÷( )= 6 /( )= ( )/ 5 = 0.6 = ( )÷ 8 = ( )%

12 ÷(20)= 6 /(10)= (3)/ 5 = 0.6 = (4.8)÷ 8 = (60)%