题目内容
把0.4:
化成最简比是______,比值是______.
| 1 |
| 4 |
(1)0.4:
,
=
:
,
=(
×20):(
×20),
=8:5;
(2)0.4:
,
=
:
,
=
÷
,
=
;
故答案为:8:5,
.
| 1 |
| 4 |
=
| 2 |
| 5 |
| 1 |
| 4 |
=(
| 2 |
| 5 |
| 1 |
| 4 |
=8:5;
(2)0.4:
| 1 |
| 4 |
=
| 2 |
| 5 |
| 1 |
| 4 |
=
| 2 |
| 5 |
| 1 |
| 4 |
=
| 8 |
| 5 |
故答案为:8:5,
| 8 |
| 5 |
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