Xinhua Bookstore shipped a total of 1,200 story books, literary books, and scientific and technological books, of which story books accounted for 40% of the total, and literary and artistic books accounted for 1/3 of the total. How many scientific and technological books are there?
新华书店运来故事书、文艺书、科技书共1200本，其中故事书占总数40%，文艺书占总数的(1/3)，科技书有多少本？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (2/5) - (1/3)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">1_200 * (4/15)</gadget>
<output>320</output>

<result>320</result>