你想问什么?补全文章Once upon a time there lived an old man.He had three sons.One day,he called them together and said"Sons,I will die soon.To my oldest son I give half my camels,to my second,one-third and to my youngest ,one-ninth."Soon after that he died.Now,the old man had seventeen camels,and the three brothers didn't know how to do as their father said They thought a long time about the problem,and it seemed that they must either kill some of the camels and cut them into pieces,or disobey their story,he said,"I will help you .I was a good friend of your father's.I am old.I have only onecamel,but take it-it is yours." The three sons thanked the old man and took his camel.Now they found it was easy to do as their father wished,The oldest took half-that was nine camels;the second took one-third,thatwas six;and the youngest took one-ninth,that was two.