Xinhua Bookstore sells books. The technology books sold are storybooks (4/5), and the comics are storybooks (8/9). 240 comic books were sold. How many technology books were sold?
新华书店售书，售出的科技书是故事书的(4/5)，连环画是故事书的(8/9)，售出连环画240本，售出科技书多少本？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">240 / (8/9)</gadget>
<output>270</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">270 * (4/5)</gadget>
<output>216</output>

<result>216</result>