When the No. 8 bus arrives at the square, (2/3) passengers get off, and 11 people get on the bus. At this time, the number of passengers on the bus is (1/4) more than before getting off the bus. Before getting off the bus, there are How many passengers?
8路公共汽车到达广场时，有(2/3)的乘客下车，又有11人上车，这时车上的乘客比下车前多了(1/4)，下车前车上有乘客多少人？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) - 1</gadget>
<output>-3/4 = around -0.75</output>

<gadget id="calculator">(2/3) + 1 + (-3/4)</gadget>
<output>11/12 = around 0.916667</output>

<gadget id="calculator">11 / (11/12)</gadget>
<output>12</output>

<result>12</result>