There are 160 chickens and 200 ducks on the farm. What percentage of the number of chickens is that of ducks?
农场养了160只鸡，200只鸭，鸡的只数是鸭的百分之几？
<gadget id="calculator">160 / 200</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>