四分之一:十六分之三 =(四分之一x__16_____):十六分之三x__16_____) =______4___:_____3____ 0.125:0.25 =(0.125X__1000_____):(0.25X_1000_____) =(__125_____÷__125_____):(___250____÷__125_____) =_____1__÷____2___ 五分之七:十五分之二十八 =(五分之七× 15 ):(十五分之二十八 ×15 ) =(21÷7):(28÷7) =3:4
四分之一:十六分之三 =(四分之一x__16_____):十六分之三x__16_____) =______4___:_____3____ 0.125:0.25 =(0.125X__1000_____):(0.25X_1000_____) =(__125_____÷__125_____):(___250____÷__125_____) =_____1__÷____2___ 五分之七:十五分之二十八 =(五分之七× 15 ):(十五分之二十八 ×15 ) =(21÷7):(28÷7) =3:4