先讲一个故事:从前有个牧民,辛苦一辈子所得的全部财产是17匹马,临终前,他把三个儿子叫到身边留下遗嘱:“孩子们啊!我把17匹马留给你们,老大得1/2,老二得1/3,老三得1/9,把马分完,但不许把马宰了再分.”三兄弟在一起商量了很久,始终无法按老人的意图把马分开.他们只好去请教爱动脑筋的邻居老大爷,老大爷认真思索 First tell a story: Once there was a pastoralist, all the property that he had acquired during his lifetime was 17 horses. Before his death, he called his three sons around and left a will: “Children! I have left 17 horses for you. The oldest is 1/2, the second is 1/3, the third is 1/9, the horse is finished, but the horse is not allowed to be slaughtered. ”The three brothers discussed together for a long time, and they could not press the old The intention was to separate the horses. They had to go and consult the brains of their neighbors, the old man, and the old man thought hard.