Grade 4 students line up to do exercises, standing in 16 rows, with 15 people in each row. If there are 20 people in each row, how many rows can they stand?
四年级同学排队做操，站成16行，每行15人．如果每行20人，可以站几行？
<gadget id="calculator">16 / 20</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">15 * (4/5)</gadget>
<output>12</output>

<result>12</result>