A rope is 15 meters long. After cutting 5 meters, what is the remaining part of the length of the rope?
一根绳子长15米，剪去5米后，剩下的部分占这根绳长的多少．
<gadget id="calculator">15 - 5</gadget>
<output>10</output>

<gadget id="calculator">10 / 15</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>