题目内容
| 求出下面各比的比值 6:
|
2.5:3.5= | 1.2:120= | ||||||
3.6:1
|
9:0.45= |
|
分析:用比的前项除以比的后项来求比值.
解答:解:(1)6:
,
=6÷
,
=18,
(2)2.5:3.5,
=2.5÷3.5,
=
,
(3)1.2:120,
=1.2÷120,
=0.01,
(4)3.6:1
,
=3.6÷1.5,
=2.4,
(5)9:0.45,
=9÷0.45,
=20,
(6)
:
,
=
÷
,
=3.
| 1 |
| 3 |
=6÷
| 1 |
| 3 |
=18,
(2)2.5:3.5,
=2.5÷3.5,
=
| 5 |
| 7 |
(3)1.2:120,
=1.2÷120,
=0.01,
(4)3.6:1
| 1 |
| 2 |
=3.6÷1.5,
=2.4,
(5)9:0.45,
=9÷0.45,
=20,
(6)
| 3 |
| 8 |
| 1 |
| 8 |
=
| 3 |
| 8 |
| 1 |
| 8 |
=3.
点评:本题主要考查了学生对求比值方法的掌握.
练习册系列答案
相关题目