The school bought 350 science and technology books, which are (5/6) of story books, and (7/4) times of story books than comic books. How many comic books are there?
学校买来科技书350本，是故事书的(5/6)，故事书是连环画的(7/4)倍，连环画有多少本？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">7 / 4</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">350 / (5/6) / (7/4)</gadget>
<output>240</output>

<result>240</result>