There are 300 literature and art books in the library, and there are more science and technology books than literature and art books (1/3). How many science and technology books are there?
图书馆有文艺书300本，科技书比文艺书多(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">300 * (4/3)</gadget>
<output>400</output>

<result>400</result>