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三小时十五分等于几小时
更新时间: 2020-09-16 00:00:00  

一个小时为六十分钟,十五分钟为六十分之十五小时,分子分母同时除以十五,得到四分之一小时,即为0.25小时,再加上愿题中的3小时。

关键词: 小时 十五分 等于

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