题目内容
求比值.
:
:15
4.2:0.07.
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 12 |
4.2:0.07.
分析:直接用比的前项除以比的后项算出商即可.
解答:解:
:
=
÷
=
×
=
;
:15
=
÷15
=
×
=
;
4.2:0.07
=4.2÷0.07
=60.
| 1 |
| 2 |
| 3 |
| 4 |
=
| 1 |
| 2 |
| 3 |
| 4 |
=
| 1 |
| 2 |
| 4 |
| 3 |
=
| 2 |
| 3 |
| 5 |
| 12 |
=
| 5 |
| 12 |
=
| 5 |
| 12 |
| 1 |
| 15 |
=
| 1 |
| 36 |
4.2:0.07
=4.2÷0.07
=60.
点评:注意求比值的结果是一个数.
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