There are 1,200 books in the library, of which science books account for (2/5), and story books are science books (5/6). How many volumes are there in total for story books and science books?
图书室里有图书1200册，其中科技书占(2/5)，故事书是科技书的(5/6)，故事书和科技书共有多少册？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1_200 * (2/5)</gadget>
<output>480</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">480 * (5/6)</gadget>
<output>400</output>

<gadget id="calculator">480 + 400</gadget>
<output>880</output>

<result>880</result>