A farm raises 1,200 ducks, and the ducks are 20% more than chickens. How many chickens are there? What is the correct column
一个饲养场，养鸭1200只，养的鸭比鸡多20%，养的鸡多少只？正确的列式是多少
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1_200 / (6/5)</gadget>
<output>1_000</output>

<result>1_000</result>