Xiao Ming read a 108-page story book, read (2/9) of this book on the first day, and (1/3) on the second day. How many pages are left unread?
小明读一本108页的故事书，第一天读了这本书的(2/9)，第二天读了(1/3)．还剩多少页没读？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (2/9) - (1/3)</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">108 * (4/9)</gadget>
<output>48</output>

<result>48</result>