Master Li needs (3/4) minutes to process one part, how many parts can he process in 3 hours.
李师傅加工一个零件需要(3/4)分钟，他3小时可以加工多少个零件．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">180 / (3/4)</gadget>
<output>240</output>

<result>240</result>