The master and apprentice process a batch of 357 parts, the master processes 65 per hour, and the apprentice processes 54 per hour. How many hours can the processing task be completed?
师徒两人加工一批零件共357个，师傅每小时加工65个，徒弟每小时加工54个，几小时可以完成加工任务？
<gadget id="calculator">65 + 54</gadget>
<output>119</output>

<gadget id="calculator">357 / 119</gadget>
<output>3</output>

<result>3</result>