Science and technology books in the library account for (1/5) of the total, literature and art books account for (1/4) of the total, children's books account for (1/3) of the total, and the rest are story books, which account for a fraction of the total How much?
图书室的科技书占总数的(1/5)，文艺书占总数的(1/4)，儿童读物占总数的(1/3)，剩下的是故事书，故事书占总数的几分之几？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">1 - (1/5) - (1/4) - (1/3)</gadget>
<output>13/60 = around 0.216667</output>

<result>13/60 = around 0.216667</result>