Divide a rope into 8 equal sections, each 3 meters long. If the rope is divided into 4 equal lengths, what is the length of each length?
把一根绳子平均分成8段，每段长3米．如把这根绳子平均分成4段，每段长多少米．
<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>