A square forest farm has a side length of 8 kilometers, and Li Ming walks 4 kilometers per hour. How many hours does it take him to go around the forest farm?
一个正方形林场，边长是8千米，李明每小时步行4千米．他绕林场一周需要多少小时？
<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">8 * (1/2)</gadget>
<output>4</output>

<gadget id="calculator">32 / 4</gadget>
<output>8</output>

<result>8</result>