A builder was building a fence. In the morning, he worked for 2/5 of an hour. In the afternoon, he worked for 9/10 of an hour. How many times as long as in the morning did he work in the afternoon? Hint: set-up and solve a division problem to help answer the question. He worked and / times longer in the afternoon as he did in the morning. (Write your answer as a mixed number) You may not use a calculator.