中山市西区初级中学邢海秋2017年12月5日15
2分式的通分分式的通分15
2分式的通分分式的通分PPT模板:www
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com/kejian/lishi/分数的运算:(一)问题情境(一)问题情境通分的依据:通分的依据:通分的关键:通分的关键:分分数数的基本性质的基本性质找所有分找所有分母母的的最小公倍数最小公倍数找所有分式的找所有分式的最简公分母最简公分母分分式式的基本性质的基本性质113