Lele reads a story book. She reads (2/3) of the whole book on the first day, and reads the rest on the second day. What percentage of the book did she read on the second day?
乐乐看一本故事书，第一天看了全书的(2/3)，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 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>