The third grade students perform gymnastics. If there are 24 people in each row, they can stand in 9 rows. If 12 people stand in each row, how many rows can they stand in?
三年级同学进行体操表演，如果每排站24人，可以站9排．如果每排站12人，可以站成多少排？
<gadget id="calculator">9 / 12</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">24 * (3/4)</gadget>
<output>18</output>

<result>18</result>