There are 240 science and technology books in class 6 and 2, and the number of stories is less than that of science and technology books (1/6). How many fewer books are storybooks than techbooks?
六2班有科技书240本，故事比科技书少(1/6)．故事书比科技书少多少书？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">240 * (1/6)</gadget>
<output>40</output>

<result>40</result>