The fourth grade students line up to do radio exercises, with 12 people in each line, exactly 4 lines. How many rows can be arranged if there are less than 4 people in each row?
四年级同学排队做广播操，每行12人，正好排4行．如果每行少排4人，可以排多少行？
<gadget id="calculator">12 - 4</gadget>
<output>8</output>

<gadget id="calculator">4 / 8</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">12 * (1/2)</gadget>
<output>6</output>

<result>6</result>