During the extra-class activities, the fourth grade students performed martial arts exercises. They were originally arranged in 12 rows, with 20 people in each row. After the formation changes, there are 15 rows, how many people are there in each row?
大课间活动时，四年级同学们表演武术操，原来排成12行，每行20人．队形变化后，排成了15行，每行有多少人？
<gadget id="calculator">20 / 15</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">12 * (4/3)</gadget>
<output>16</output>

<result>16</result>