Sixth graders do inter-class exercises, arranged in 14 rows, with 15 people standing in each row. If there are 30 people standing in each row, how many rows can they line up?
六年级做课间操，排成14行，每行站15人．如果每行站30人，可以排几行？
<gadget id="calculator">15 / 30</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">14 * (1/2)</gadget>
<output>7</output>

<result>7</result>