Processing a batch of parts, Master Wang processes 48 per hour, and the ratio of the number of parts processed per hour to Master Li is 4:5. How many parts can be processed by two joint processing for 3 hours?
加工一批零件，王师傅每小时加工48个，与李师傅每小时加工个数的比是4：5．两个共同加工3小时，可以加工多少个零件？
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">48 * (5/4)</gadget>
<output>60</output>

<gadget id="calculator">48 + 60</gadget>
<output>108</output>

<gadget id="calculator">108 * 3</gadget>
<output>324</output>

<result>324</result>