在括号里填上适当的分数.25厘米=( )米 4天=( )周 13dm3=( )m3.
0.16==2÷ =8: = %
0.75==6÷( )=12:( )=( )%
0.25== :16=5÷ = %
:20=0.8=12÷ == %= (填成数)
= %= : = (小数)