Divide 30 books into 5 parts on average, how many books are in each part, and each part accounts for ((())/(())) of these books.
把30本书，平均分成5份，每份是多少本，每份占这些书的((())/(()))．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">30 * (1/5)</gadget>
<output>6</output>

<result>6</result>