There are 350 literature and art books in the school library, which are science and technology books (7/8). How many books are there in total?
学校图书室有文艺书350本，是科技书的(7/8)．这两种书共有多少本？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">350 / (7/8)</gadget>
<output>400</output>

<gadget id="calculator">400 + 350</gadget>
<output>750</output>

<result>750</result>