There are 300 books in the sixth grade, and the books assigned to the fifth grade are sixth grade (4/5), how many books are there in the fifth grade?
六年级有300本书，五年级分到的书是六年级的(4/5)，五年级有多少本书？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">300 * (4/5)</gadget>
<output>240</output>

<result>240</result>