There are 2,400 science and technology books in the school library, and the number of story books is more than that of science and technology books (1/4). How many story books are there?
学校图书馆有科技书2400本，故事书的本数比科技书多(1/4)，故事书有多少本？
<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">2_400 * (5/4)</gadget>
<output>3_000</output>

<result>3_000</result>