_ ÷8=0.25=4/( )=20: _ =1/10 _ .

问题描述:

___ ÷8=0.25=

4
(   )
=20: ___ =
1
10
___ .

根据题干分析可得:
2÷8=0.25=

4
16
=20:80.
故答案为:2;16;80.