There are 400 story books in the fifth grade, the number of science books is (3/8) of story books, and the number of literature and art books is (4/5) of science books, how many literature and art books are there?
五年级有故事书400本，科技书的本数是故事书的(3/8)，文艺书的本数是科技书的(4/5)，文艺书有多少本？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">400 * (3/8) * (4/5)</gadget>
<output>120</output>

<result>120</result>