A farm raises 2000 ducks. There are more chickens than ducks (4/5). How many chickens do you have?
一个饲养场养鸭2000只．养的鸡比鸭多(4/5)．养的鸡有多少只？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 + (4/5)</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">2_000 * (9/5)</gadget>
<output>3_600</output>

<result>3_600</result>