甲数比乙数多6,甲:乙=5:4,甲数是 ,乙数是 .
=65%= ÷20=26: = (小数)
: == ÷6=6÷ .
= : ==6÷ = %
9:24=3: =3÷ == %.
:100=15÷ = %==0.25= 折.