所谓化归,即转化与归结的意思.具体解题时,需要把复杂问题简单化、一般问题具体化、特殊问题一般化、抽象问题直观化.解题时一般要遵循简单化原则、具体化原则、低层次化原则、和谐统一性原则等.本文结合几道数学竞赛试题,介绍化归法在解答特殊分式方程中的应用,供大家参考. The so-called conversion, that is, the meaning of conversion and boil down.Specific problem-solving, the need to simplify complex problems, specific problems of generalization, generalization of special problems, visualization of abstract problems.In general, to solve the problem to follow the principle of simplification, Principle, low-level principle, the principle of harmony and unity, etc. In this paper, several mathematical contest questions are introduced to explain the application of the law of regression in solving special fractional equations for your reference.