There are 500 literature and art books in the library, which is 1/3 more than science and technology books. How many science and technology books are there?
图书馆有文艺书500本，比科技书多(1/3)，科技书有多少本？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">500 / (4/3)</gadget>
<output>375</output>

<result>375</result>