求比值 80:24 0.5:0.2 0.15:21 36:18 13:91 3:12 1.01:101 21:24 36:72 20:40 89.5:2 10.5:21 3.14:28.26 41.23:4123 15:0.12 10:120 123:3 65:13 3:1 42:54
1/2:0.2
=1/2:1/5
=1/2÷1/5
=5/2(求比值)
=5:2(化简)
0.23:1/8
=23/100:1/8
=23/100÷1/8
=46/25(求比值)
=46:25
2:2,,,1:1,,,3:3
556654555555544688844
太好了,作业正好是这个,你帮了我很多次