在一些分式运算中,学生们往往因为对分式概念理解不透彻,而出现一些典型错误,现归类小结如下,供师生教学时参考.一、混淆分式加减法法则和乘除法法则改错例1计算(a+b)/((b-c)(c-a))-(b+c)/((a-c)(a-b))-(c+a)/((a-b)(c-b)).误解原式 In some fractional computing, students often because of the incomplete understanding of the concept of fractional, and some typical mistakes are summarized below are summarized as follows for teachers and students teaching reference First, the confusion of sub-addition and subtraction law and multiplication and division Error Correction Example 1 Calculation of (a + b) / ((bc) (ca)) - (b + c) / ((ac) (ab)) - (c + a) / (ab) (cb) Misunderstood the original