Cut a 20-meter-long ring rope into several identical sections, and cut it 5 times in total. How many meters is each section?
把一根长20米的圆环绳剪成相同的几段，共剪了5下，每段长多少米．
<gadget id="calculator">20 / 5</gadget>
<output>4</output>

<result>4</result>