按从小到大的顺序排列下列保数.0.7 0.507 0.705 0.75 0.057 5.70 < < < < < .
=12: =.
30: =0.2= =.
7÷ = :12=25%=.
因为a除以b等于7除以4,那么a是b的. .
=24: =0.6= ÷10= %=.