小红今年10岁,爸爸今年n岁,8年后小红和爸爸相差 岁.
=0.375= :16= %
0.6== ÷30= %
9÷ =0.75= :24= %= 折.
9÷ =0.75== :36= %
6÷ = /16=0.25= :4= %