题目内容
在横线里填上合适的数,使比例式成立.
| 8:6=4.8:______ | 6.3:______=5:9 | ||||||
______:
| 45:7.5=______:
|
| (1)8:6=4.8:x, 8x=6×4.8, x=3.6; |
5x=6.3×9,
x=11.34;
(3)x:
| 4 |
| 5 |
| 3 |
| 2 |
| 3 |
| 2 |
| 4 |
| 5 |
x=
| 8 |
| 5 |
(4)45:7.5=x:
| 2 |
| 3 |
7.5x=45×
| 2 |
| 3 |
x=4.
故答案为:3.6,11.34,
| 8 |
| 5 |
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