A rope is 45 meters, cut 15 meters to make a long skipping rope, and the remaining length is how many times the cut length.
一根绳子45米，剪下15米做一个长跳绳，剩下的长度是剪下的多少倍．
<gadget id="calculator">45 - 15</gadget>
<output>30</output>

<gadget id="calculator">30 / 15</gadget>
<output>2</output>

<result>2</result>