When Li Hua reads a story book, he reads the whole book (2/5) on the first day, and reads the rest on the second day. What percentage of the book did he read on the second day?
李华看一本故事书，第一天看了全书的(2/5)，剩下的第二天看完，第二天看了这本书的几分之几？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>