2019年春七年级数学下册第5章分式5.4第1课时同分母分式的加减课件新版浙教版20190119256.pptx

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第5章 分式,第1课时 同分母分式的加减,学知识,筑方法,勤反思,知识点 同分母分式的加减运算,5.4 分式的加减,学知识,不变,加减,5.4 分式的加减,类型一 同分母分式相加减,筑方法,5.4 分式的加减,5.4 分式的加减,【归纳总结】互为相反数的分式的加减 当分式的分母互为相反数时,可先利用符号法则将其化为同分母的分式,然后再进行同分母分式的加减运算,5.4 分式的加减,类型二 同分母分式的加减运算在化简求值中的应用,5.4 分式的加减,5.4 分式的加减,小结,勤反思,同分母分数的加减,同分母分式的加减,5.4 分式的加减,同分母分式的加减法法则,类比,归纳,反思,5.4 分式的加减,

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