化简下面各比,100:4.8,4.5:2.5,27/19:72/57
问题描述:
化简下面各比,100:4.8,4.5:2.5,27/19:72/57
答
100:4.8=1000:48=125:6
4.5:2.5=9:5
27/19:72/57=81:72=9:8