There are more story books (1/4) than science books in the school library. There are 600 story books, but how many science books are there?
学校图书室故事书比科技书本数多(1/4)，故事书有600本，科技书有多少本？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">600 / (5/4)</gadget>
<output>480</output>

<result>480</result>