题目内容
把0.6
化成分数后,0.6
=
.
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| 617 |
| 990 |
| 617 |
| 990 |
分析:由0.6
×1000=623.
,0.6
×10=6.
,得0.6
×990=617,由此能把0.6
化成分数.
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解答:解:∵0.6
×1000=623.
,①
0.6
×10=6.
,②
①-②,得0.6
×990=617,
∴0.6
=
.
故答案为:
.
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0.6
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①-②,得0.6
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∴0.6
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| 617 |
| 990 |
故答案为:
| 617 |
| 990 |
点评:本题考查把循环小数化成分数的方法,解题时要认真审题,仔细解答,注意公式的合理运用.
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