| 将下列各比化简成最简整数比 12:18= | = | 1.8:0.09= | = |
:0.5= | 2:18= | 0.3:2.4= | 75: = |
| 解:12:18=2:3 | =10:9 | 1.8:0.09=20:1 | =2:3 |
:0.5=4:3 | 2:18=1:9 | 0.3:2.4=1:8 | 75: =100:1 |
分析:根据比的基本性质:比的前项和后项同进乘或除以一个不是0的数,比值不变.据此解答.
点评:本题主要考查了学生对求比值方法的掌握.
编辑:chaxungu时间:2026-04-27 12:16:39分类:小学数学题库
| 将下列各比化简成最简整数比 12:18= | = | 1.8:0.09= | = |
:0.5= | 2:18= | 0.3:2.4= | 75: = |
| 解:12:18=2:3 | =10:9 | 1.8:0.09=20:1 | =2:3 |
:0.5=4:3 | 2:18=1:9 | 0.3:2.4=1:8 | 75: =100:1 |