一、知识扫描1.分式方程的概念分母中含有未知数的有理方程叫做分式方程.2.解分式方程的基本思想方法分式方程(去分母)/(换元)整式方程.3.解分式方程时可能产生增根,因此,求得的结果必须检验.二、例题解读1.解方程例1解方程:(x-1)/(x+1)+(2x)/(1-2x)=0.解析:解分式方程的基本思路是:先确定最简公分母,再通过去分母把分式方程转化成整式方程,从而求得其解.要注意的是解分式方 First, the knowledge of scanning 1. The concept of fractional equation Denominator contains unknowns of the rational equation is called fractional equation .2. The basic idea of ​​solution equation equation Fractional equation (denominator) / (for yuan) integer equation .3. Therefore, the results obtained must be tested. Second, the interpretation of the examples 1. Solution equation Example 1 solution equation: (x-1) / (x +1) + (2x) / (1 -2x) = 0. Analysis: The solution of the basic idea of ​​split equation is: first determine the most common denominator, and then by denominator to subdivision equation into an integral equation, to find its solution. It should be noted that the solution square