分式运算是分式一章的重点和难点 ,也是初中代数中常见的一类计算 .在进行分式运算时 ,同学们通常采用分式的运算法则 ,一步步计算 ,对稍复杂的分式时总感到这种运算方法很复杂 ,计算量大 ,容易算错 .其实 ,对于千差万别的分式 ,它们也各自有特点 .如果我们能够认真地分析各个? Fractional operations are the key and difficult part of the fractional chapter, and they are also a common type of computation in junior high school algebra. When performing fractional operations, the students usually use fractional algorithms to calculate step by step, for slightly complicated fractions. It is always felt that this method of calculation is very complicated, and the amount of calculation is large and it is easy to make mistakes. In fact, for the thousands of fractions, they also have their own characteristics. If we can seriously analyze each?