A gear with a diameter of 48cm drives a gear with a diameter of 36cm (interlocking with each other). If the large gear rotates 12 times, how many times does the small gear rotate?
一个直径为48cm的齿轮带动一个直径为36cm的齿轮(相互咬合)，如果大齿轮转12圈，则小齿轮转多少圈．
<gadget id="calculator">576 / 36</gadget>
<output>16</output>

<result>16</result>