分式方程的应用较为广泛．在中考试题中也屡见不鲜．下面举例谈谈怎样列分式方程解应用题．供读者参考．一、找相等关系．按相等关系选择未知数列公式方程例1某工程队修筑～段长200米的公路，实际施工时，平均每天比原计划多修5米，结果提前2天完成任务．间修筑这段路实际用了 Fractional equations are widely used. In the exam questions are also common. The following example to talk about how to solve the application of columnar equations. For readers reference. First, find equal relations. According to the equation of choice, the equations of unknowns are used to formulate equations. Example 1 An engineering team builds a road with a length of 200 meters. When it is actually constructed, it is repaired by an average of 5 meters per day more than originally planned, and the task is completed 2 days ahead of schedule. Between the construction of this section actually used