题目内容
求比值.
(1)36:18
(2)
:
(3)0.18:2.4
(4)
:
.
(1)36:18
(2)
| 2 |
| 15 |
| 4 |
| 15 |
(3)0.18:2.4
(4)
| 5 |
| 6 |
| 1 |
| 2 |
分析:用比的前项除以比的后项所得的商即为比值;据此计算得解.
解答:解:(1)36:18,
=36÷18,
=2;
(2)
:
,
=
÷
,
=
;
(3)0.18:2.4,
=0.18÷2.4,
=
;
(4)
:
,
=
÷
,
=
.
=36÷18,
=2;
(2)
| 2 |
| 15 |
| 4 |
| 15 |
=
| 2 |
| 15 |
| 4 |
| 15 |
=
| 1 |
| 2 |
(3)0.18:2.4,
=0.18÷2.4,
=
| 3 |
| 40 |
(4)
| 5 |
| 6 |
| 1 |
| 2 |
=
| 5 |
| 6 |
| 1 |
| 2 |
=
| 5 |
| 3 |
点评:此题考查求比值的方法,求比值的结果是一个数,可以是小数、分数和整数.
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