题目内容
| 1 |
| 4 |
| 2 |
| 5 |
(1)
:
,
=(
×20):(
×20),
=5:8;
(2)
:
,
=
÷
,
=
;
故答案为:5:8,
.
| 1 |
| 4 |
| 2 |
| 5 |
=(
| 1 |
| 4 |
| 2 |
| 5 |
=5:8;
(2)
| 1 |
| 4 |
| 2 |
| 5 |
=
| 1 |
| 4 |
| 2 |
| 5 |
=
| 5 |
| 8 |
故答案为:5:8,
| 5 |
| 8 |
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