The basic characteristics of fractional equation application problems are: (1) each quantity and its corresponding number of copies are unknown, and the total amount is known or indirectly known; (2) Two protagonists and two relationships. For example, the distance problem, if there are two protagonists, A and B (now or before), the speed of A and the time of A's movement, the speed of B and the time of B are unknown, but the speed of A and the speed of B, the driving time of A and the driving time of B are obviously equal. It can be determined as an application problem of fractional equation.