The school bought 135 meters of plastic rope for skipping, cut off 27 meters first, and made 15 skipping ropes. According to this calculation, how much rope skipping can be done with the remaining rope?
学校买来135米塑料绳做跳绳，先剪下27米，做了15跟跳绳．照这样计算，剩下的绳子可做多少跟跳绳？
<gadget id="calculator">135 - 27</gadget>
<output>108</output>

<gadget id="calculator">27 / 15</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">108 / (9/5)</gadget>
<output>60</output>

<result>60</result>