13问答网 > 应用比例的基本性质，判断下面哪组中的两个比能组成比例，把组成的比例写出来

应用比例的基本性质，判断下面哪组中的两个比能组成比例，把组成的比例写出来

2025-03-15 05:53:17
推荐回答（1个）
回答1：

你好！
1）因为1/5×5＝1，1/6×6＝1，所以15：1/6＝6：5
2）因为3×3.5＝10.5，0.5×21＝10.5，所以3：0.5＝21：3.5
3）因为
1/4×70＝17.5，45×0.2＝9，所以1/4：45和0.2：70不能组成比例
仅代表个人观点，不喜勿喷，谢谢。

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