不用通分!3个超快比较数大小的技巧(附例题解析)
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棰樼洰 | 姝ラ | 缁撴灉 |
---|---|---|
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9/14 vs 4/9 | 9脳9=81 vs 4脳14=56 | 9/14 > 4/9 |
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