两个整数相除得商数是12和余数是26,被除数、除数、商数及余数的和等于454,除数是 .
0.4= : == %= ÷30.
3:5==15÷ = ÷75= (填小数)
0.75= :28== %=24÷ .
18÷ = ÷25=0.6==.
=0.25==27÷ = ÷48.