There are 100 chickens in the farm. Among them, ducks account for (1/4) of chickens. How many ducks are there?
饲养场有100只鸡．其中鸭占鸡的(1/4)．鸭有多少只？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">100 * (1/4)</gadget>
<output>25</output>

<result>25</result>