题目内容
| 化简比. 1
|
0.25:4
|
|
(1)1
吨:250千克,
=1750千克:250千克,
=(1750÷250):(250÷250),
=7:1;
(2)0.25:4
,
=0.25:4.5,
=(0.25×20):(4.5×20),
=5:90,
=1:18;
(3)
:
,
=(
×27):(
×27),
=15:5,
=3:1.
| 3 |
| 4 |
=1750千克:250千克,
=(1750÷250):(250÷250),
=7:1;
(2)0.25:4
| 1 |
| 2 |
=0.25:4.5,
=(0.25×20):(4.5×20),
=5:90,
=1:18;
(3)
| 5 |
| 9 |
| 5 |
| 27 |
=(
| 5 |
| 9 |
| 5 |
| 27 |
=15:5,
=3:1.
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