A breeding factory raises 1,200 chickens and ducks in total, and the number of chickens raised accounts for (3/5) of them. How many chickens are there?
一个饲养厂，养鸡、鸭共1200只，养的鸡数占其中的(3/5)，养的鸡有多少只？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1_200 * (3/5)</gadget>
<output>720</output>

<result>720</result>