解分式方程的关键在于去分母．为此，课本介绍了在方程的两边都乘以最简公分母的方法约去分母．本文以课本题为例，针对题目的特征．介绍几种有别于课本去分母的“妙招”，供参考．一、移项合并法俐1解方程（九义教材代数第二册P96。第1（1）题）合并，得．显然原方程无解．说? The key to solving the fractional equation is to denominator. For this reason, textbooks describe the denominator denominator by multiplying the most common denominator on both sides of the equation. This article takes a textbook example as an example, focusing on the characteristics of the topic. Introduce several “couples” that are different from textbooks and denominators for reference. First, the transfer of merger method 俐 1 solution equation (Nine Yi textbooks algebra second book P96. 1 (1) title) merger, was. Obviously the original equation has no solution. Say?