After a bus arrives at a station, (4/7) of all the passengers get off the bus, and 34 passengers get on the bus. At this time, the original number of passengers on the bus is (5/6). ?
一辆公共汽车到一个站后，全体乘客中有(4/7)的人下车，又上来34名乘客，这时车上的乘客是原来的(5/6)，车上原有乘客多少人？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">1 - (4/7)</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">(5/6) - (3/7)</gadget>
<output>17/42 = around 0.404762</output>

<gadget id="calculator">34 / (17/42)</gadget>
<output>84</output>

<result>84</result>