A train from Shantou to Guangzhou arrived in Huizhou on the way (2/9) passengers got off, and another 126 people got on the train. At this time, the passengers on the train were the original ones (17/18). Asked about driving in Shantou How many passengers are there?
一列从汕头开往广州的火车，途中到达惠州时有(2/9)的旅客下车，又有126人上车，这时车上的旅客是原来的(17/18)，问在汕头开车时有旅客多少人？
<gadget id="calculator">17 / 18</gadget>
<output>17/18 = around 0.944444</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 - (2/9)</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">(17/18) - (7/9)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">126 / (1/6)</gadget>
<output>756</output>

<result>756</result>