求下面各比的比值.5:9 0.6:0.16 2/3 :6/7 0.8:1/2
问题描述:
求下面各比的比值.5:9 0.6:0.16 2/3 :6/7 0.8:1/2
答
5:9=5÷9=9分之5
0.6:0.16=0.6÷0.16=3.75
2/3 :6/7=2/3÷6/7=7/9
0.8:1/2=0.8÷1.2=20/3