Master Li processes 60 parts in 2 hours. According to this calculation, how many hours will it take to process 270 parts.
李师傅2小时加工60个零件，照这样计算，加工270个零件需要多少小时．
<gadget id="calculator">60 / 2</gadget>
<output>30</output>

<gadget id="calculator">270 / 30</gadget>
<output>9</output>

<result>9</result>