The ratio of the number of literature and art books to the number of story books is 7:5, the number of story books is 60, how many are the number of literature and art books.
文艺书本数与故事书本数的比是7：5，故事书是60本，文艺书是多少本．
<gadget id="calculator">7 / 5</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">60 * (7/5)</gadget>
<output>84</output>

<result>84</result>