题目内容
一个分数,加上这个分数的分数单位,和等于1,减去这个分数的分数单位差等于
,这个分数是______.
| 5 |
| 6 |
1-(1-
)÷2,
=1-
×
,
=1-
,
=
.
答:这个分数是
.
故答案为:
.
| 5 |
| 6 |
=1-
| 1 |
| 6 |
| 1 |
| 2 |
=1-
| 1 |
| 12 |
=
| 11 |
| 12 |
答:这个分数是
| 11 |
| 12 |
故答案为:
| 11 |
| 12 |
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题目内容
| 5 |
| 6 |
| 5 |
| 6 |
| 1 |
| 6 |
| 1 |
| 2 |
| 1 |
| 12 |
| 11 |
| 12 |
| 11 |
| 12 |
| 11 |
| 12 |