Machine tool A processes parts of a certain specification, and processes 16 pieces in 10 minutes; machine tool B processes parts of the same specification, and processes 20 pieces in 16 minutes. If machine tools A and B process 1140 such parts at the same time, how many minutes will it take?
机床A加工某种规格的零件，10分钟加工16个，机床B加工同样规格的零件，16分钟加工20个．若机床A和B同时加工1140个这种零件，则需要多少分钟？
<gadget id="calculator">16 / 10</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">20 / 16</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(8/5) + (5/4)</gadget>
<output>57/20 = around 2.85</output>

<gadget id="calculator">1_140 / (57/20)</gadget>
<output>400</output>

<result>400</result>