There are 240 science books in the library. The story books are science books (7/8) and comic books (5/7). How many comic books are there in the library?
图书馆有科技书240本，故事书是科技书的(7/8)，又是连环画的(5/7)，图书馆有连环画多少本？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(7/8) / (5/7)</gadget>
<output>49/40 = around 1.225</output>

<gadget id="calculator">240 * (49/40)</gadget>
<output>294</output>

<result>294</result>