甲数÷乙数=5…4,乙数最小是 ;如果乙数是6,那么甲数是 .
0.16==2÷ =8: = %
0.75==6÷( )=12:( )=( )%
0.25== :16=5÷ = %
:20=0.8=12÷ == %= (填成数)
= %= : = (小数)