=8× =1.25× = ×=1．
= ÷25=40%= ：45．
24： == ÷1.2= 折=75%
= ×=36÷ = ：13.5．
÷20=0.4= %=2： ．
已知m÷n=7…1，则m÷n=．
=8× =1.25× = ×
=1．
= ÷25=40%= ：45．
= ÷1.2= 折=75%
= ×
=36÷ = ：13.5．
．
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