There are 150 people in the first workshop of the garment factory, which is (5/7) the number of people in the second workshop. The number of people in the two workshops is exactly (6/7) of the total number of workers in the whole factory. How many workers are there in the whole factory?
服装厂第一车间有150人，是第二车间人数的(5/7)，两个车间的人数正好是全厂工人总数的(6/7)，全厂有工人多少人？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">150 / (5/7)</gadget>
<output>210</output>

<gadget id="calculator">150 + 210</gadget>
<output>360</output>

<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">360 / (6/7)</gadget>
<output>420</output>

<result>420</result>