题目内容
求比值.
|
0.125:0.8 | 0.7:14 | ||||||
|
|
1.2:0.75. |
分析:根据求比值的方法,就用比的前项除以比的后项所得的商即为比值;据此进行计算.
解答:解:(1)
:
=
÷
=
;
(2)0.125:0.8
=0.125÷0.8
=
;
(3)0.7:14
=0.7÷14
=
;
(4)
吨:450千克
=3500千克:450千克
=3500÷450
=
;
(5)
:
=
÷
=
;
(6)1.2:0.77
=1.2÷0.75
1 |
4 |
1 |
5 |
=
1 |
4 |
1 |
5 |
=
5 |
4 |
(2)0.125:0.8
=0.125÷0.8
=
5 |
32 |
(3)0.7:14
=0.7÷14
=
1 |
20 |
(4)
7 |
2 |
=3500千克:450千克
=3500÷450
=
70 |
9 |
(5)
7 |
10 |
3 |
4 |
=
7 |
10 |
3 |
4 |
=
14 |
15 |
(6)1.2:0.77
=1.2÷0.75
=
|
点评:此题考查求比值的方法,要注意求比值的结果是一个数,可以是小数、分数和整数;还要注意:如果比的前后项是名数时,要把单位化统一后再求比值.
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