(3/10) of literature and art books is exactly equal to (3/4) of story books. It is known that there are 36 story books, how many literature and art books are there?
文艺书的(3/10)，正好等于故事书的(3/4)，已知故事书有36本，文艺书有多少本．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/4) / (3/10)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">36 * (5/2)</gadget>
<output>90</output>

<result>90</result>