Master Li takes (3/5) hours to process (1/4) parts, how many hours does it take to process one part, and what is the list
李师傅用(3/5)小时加工(1/4)个零件，求加工一个零件要多少小时，列式为多少
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(3/5) / (1/4)</gadget>
<output>12/5 = around 2.4</output>

<result>12/5 = around 2.4</result>