In April, a certain school carried out the selection of "little bookworms" interesting reading activities. Mingming chose an 80-page fairy tale book, and he read 51 pages in two days. What fraction of the total pages in the book did he read?
四月份，某校开展评选"小书虫"趣味阅读活动．明明选择了一本80页的童话故事书，他两天看了51页，看过的页数占这本书总页数的几分之几？
<gadget id="calculator">51 / 80</gadget>
<output>51/80 = around 0.6375</output>

<result>51/80 = around 0.6375</result>