为了揭示分式乘除法的运算规律，请先看下例：解（1）原式（应用法则）（约分）。从上例的运算过程可知，在分式乘除运算中．我们所做的只是这样三件事：一是应用法则；二是分解因式；三是约分．由此可总结归纳出分式乘除法的运算规律：分式乘除法＝应用法则＋分解因式＋约分． In order to reveal the operation law of fractional multiplication and division, please see the following example: solution (1) original (application rule) (approximate). From the operation of the above example, we can see that in the fractional multiplication and division operation. What we did was only three things: one was the application of rules, the other was the factorization, and the third was about the points. This can be summed up and generalized the operation law of fractional multiplication and division: fractional multiplication and division = application rule + decomposition factor + about cent.