12:20=_:4=_%=_(填小数)

问题描述:

12:20=______:4=______%=______(填小数)

12:20,
=(12÷5):(20÷5),
=2.4:4;
=2.4÷4,
=0.6,
=60%,
12:20=2.4:4=60%=0.6(填小数)
故答案为:2.4,60,0.6.