最简分数


最简分数 (正體)

若一分数可表为\frac{p}{q},且p , q \in \mathbb{Z}整数),(p,q) = 1,则称\frac{p}{q}最简分数既约分数。假若p和q还有别的因子,则其非最简分数,即假若(p,q) = d,且设p = k_1 d , q = k_2 d ; k_1 , k_2 \in \mathbb{Z}\frac{p}{q} = \frac{k_1}{k_2} 其中\frac{k_1}{k_2}\frac{p}{q}的最简分数。

\frac{1}{3}\frac{4}{19}\frac{198}{17}等都是最简分数,而\frac{6}{4}不是,因为(6,4) = 2,因而\frac{6}{4} = \frac{3}{2}







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