题目内容
| 求出下面各比的比值 40:28 |
1.6:2.5 | ||||||
|
| ||||||
| 9.2:2.05. |
分析:用比的前项除以后项即可.
解答:解:(1)40:28,
=40÷28,
=
;
(2)1.6:2.5,
=1.6÷2.5,
=0.64;
(3)
:8.4,
=
÷8.4,
=
;
(4)
:
,
=
÷
,
=
;
(5)9.2:2.05,
=9.2÷2.05,
=
.
=40÷28,
=
| 10 |
| 7 |
(2)1.6:2.5,
=1.6÷2.5,
=0.64;
(3)
| 7 |
| 2 |
=
| 7 |
| 2 |
=
| 5 |
| 12 |
(4)
| 5 |
| 2 |
| 11 |
| 2 |
=
| 5 |
| 2 |
| 11 |
| 2 |
=
| 5 |
| 11 |
(5)9.2:2.05,
=9.2÷2.05,
=
| 184 |
| 41 |
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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