化简比;数学2道0.2 t :50kg75min :1/4h
问题描述:
化简比;数学2道
0.2 t :50kg
75min :1/4h
答
0.2 t :50kg=200Kg:50Kg=4:1
75min :1/4h=75min:15min=5:1
答
0.2 t :50kg
=200kg:50kg
=200:50
=4:1
75min :1/4h
=75min:15min
=75:15
=5:1