A 9-meter-long rope is cut twice, how many meters is the average length of each piece?
一根9米长的绳子，剪了2次，平均每段长多少米？
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<result>3</result>