chicken farm sold (1/6) of the total number of chickens on the first day, and (1/2) of the total number of chickens on the second day, leaving 1200 chickens. How many chickens were sold in two days?
某养鸡场第一天卖出养鸡总数的(1/6)，第二天卖出养鸡总数的(1/2)，还剩1200只，两天共卖出鸡多少只？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/6) - (1/2)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1_200 / (1/3)</gadget>
<output>3_600</output>

<gadget id="calculator">3_600 - 1_200</gadget>
<output>2_400</output>

<result>2_400</result>