求比值7.5cm比1米
问题描述:
求比值7.5cm比1米
答
7.5cm :1米 = 7.5cm :100cm
= 15 :200
= 3:40
求比值7.5cm比1米
7.5cm :1米 = 7.5cm :100cm
= 15 :200
= 3:40