Straighten a 4-meter-long rope and cut it three times so that each section is equal in length, then how many meters is each section?
把4米长的绳子拉直后剪三刀，使每段长度相等，那么每段是多少米．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">4 / 4</gadget>
<output>1</output>

<result>1</result>