题目内容
求出下列各比的比值. 1
|
| ||||||
1.4﹕
|
25%:0.75. |
分析:用比的前项除以后项即可.
解答:解:(1)1
:
,
=1
÷
,
=2.2;
(2)
千米:500米,
=750÷500,
=1.5;
(3)1.4﹕
,
=1.4÷
,
=
;
(4)25%:0.75,
=25%÷0.75,
=
.
3 |
8 |
5 |
8 |
=1
3 |
8 |
5 |
8 |
=2.2;
(2)
3 |
4 |
=750÷500,
=1.5;
(3)1.4﹕
3 |
4 |
=1.4÷
3 |
4 |
=
28 |
15 |
(4)25%:0.75,
=25%÷0.75,
=
1 |
3 |
点评:此题考查求比值得方法,用比的前项除以比的后项,结果是一个数.
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