Divide a 7-meter-long steel bar equally with 4 points, what is the length of each section 7 meters
把7米长的钢筋，用4个分点平分，每段的长度是7米的多少
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>