Among the books in the school library, novels account for (2/9), fairy tales account for (5/18), literary genres account for (1/6), and the rest are science and technology. What percentage of science and technology?
学校图书馆的藏书中，小说类占(2/9)，童话类占(5/18)，文体类占(1/6)，其余为科技类，科技类占几分之几？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">5 / 18</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (2/9) - (5/18) - (1/6)</gadget>
<output>1/3 = around 0.333333</output>

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