仔细观察下列数字的排列规律,并遵循排列规律填空
= : == ÷10= (填小数).
18÷ ==0.9:0.3=3: = :24.
÷15=0.8==16: = %= 折.
0.8==12÷ = 折= %
3÷ == :12=七成五= %