在横线里填上“>”“<”“=”.4.7×0.9 4.7 8.5×0.6 8.53.21÷100 3.21×0.01 10.3×1.01 10.3.
÷20=0.4= %=2: .
已知m÷n=7…1,则m÷n=.
6÷ =0.75= %= : =.
.
25%==8: =3÷ = .