甲数的等于乙数的,甲乙两数的比是 ,甲比乙少 .
4÷5==== 小数.
÷12==0.75= : = 折= %
12÷ =0.25= %= :24== (填成数)
9÷ == :8= (填小数)
20: = ÷20==0.8= %