题目内容
求比值
40:28
:8.4
:
9.2:2.05.
40:28
| 7 |
| 2 |
| 5 |
| 2 |
| 11 |
| 2 |
9.2:2.05.
分析:用比的前项除以后项所得的商,即为比值.
解答:解:40:28
=40÷28
=
:8.4
=
÷
=
:
=
÷
=
9.2:2.05
=9.2÷2.05
=
.
=40÷28
=
| 10 |
| 7 |
| 7 |
| 2 |
=
| 7 |
| 2 |
| 42 |
| 5 |
=
| 5 |
| 12 |
| 5 |
| 2 |
| 11 |
| 2 |
=
| 5 |
| 2 |
| 11 |
| 2 |
=
| 5 |
| 11 |
9.2:2.05
=9.2÷2.05
=
| 184 |
| 41 |
点评:此题考查求比值的方法,要注意求比值的结果是一个数,可以是小数、分数和整数.
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