请按要求完成一下题目: (1)3:5==15÷______=______÷75=______(填小数)(2)2.5:______==1.25=25÷______
÷8==0.5= %= : .
=0.25=4÷ = :28= %
12÷ ==== %= 折.
5: ==1.25=30÷ = %
1==3÷ = : = %= (填小数).