A book has 256 pages. Xiao Ming read (1/4) of the book on the first day, (3/4) of the pages read on the first day on the second day, and read the second day on the third day The number of pages read (11/12), the third day (4/11) was read on the fourth day, how many pages are left unread?
一本书有256页，小明第一天读了这本书的(1/4)，第二天读了第一天读的页数的(3/4)，第三天读了第二天读的页数的(11/12)，第四天读了第三天的(4/11)，还剩多少页没有看？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(1/4) * (3/4)</gadget>
<output>3/16 = around 0.1875</output>

<gadget id="calculator">11 / 12</gadget>
<output>11/12 = around 0.916667</output>

<gadget id="calculator">(1/4) * (3/4) * (11/12)</gadget>
<output>11/64 = around 0.171875</output>

<gadget id="calculator">4 / 11</gadget>
<output>4/11 = around 0.363636</output>

<gadget id="calculator">(1/4) * (3/4) * (11/12) * (4/11)</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">1 - (1/4) - (3/16) - (11/64) - (1/16)</gadget>
<output>21/64 = around 0.328125</output>

<gadget id="calculator">256 * (21/64)</gadget>
<output>84</output>

<result>84</result>