There are 84 workers in the first workshop of a certain factory, the number of workers in the second workshop is less than that in the first workshop (1/6), and the number of workers in the third workshop is (6/7) that of the second workshop. How many workers are there in the third workshop?
某工厂一车间有工人84人，二车间人数比一车间少(1/6)，三车间人数是二车间人数的(6/7)，三车间有多少人？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">84 * (5/6)</gadget>
<output>70</output>

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

<gadget id="calculator">70 * (6/7)</gadget>
<output>60</output>

<result>60</result>