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九分之五减一等于多少啊
更新时间: 2020-09-26 00:00:00  

1、将二者通分,即将分母均化为九,题目“九分之五减一”即为“九分之五减九分之九”;

2、利用同分母分数减法法则,二者相减,则分母为九,分子为五减去九的差即负四;

3、将分子的负号提取并置于分数整体之前,所得结果即为负九分之四。

关键词: 分之 等于 多少

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