题目内容
求比值
13:
:14
:
.
13:
| 1 |
| 2 |
| 7 |
| 8 |
| 4 |
| 9 |
| 5 |
| 18 |
考点:求比值和化简比
专题:比和比例
分析:根据求比值的方法,就用比的前项除以后项即得比值.
解答:
解:(1)13:
=13÷
=26;
(2)
:14
=
÷14
=
;
(3)
:
=
÷
=
| 1 |
| 2 |
=13÷
| 1 |
| 2 |
=26;
(2)
| 7 |
| 8 |
=
| 7 |
| 8 |
=
| 1 |
| 16 |
(3)
| 4 |
| 9 |
| 5 |
| 18 |
=
| 4 |
| 9 |
| 5 |
| 18 |
=
| 8 |
| 5 |
点评:求比值的结果是一个数,可以是整数、小数或分数.
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