A farmer raises 300 chickens, which is 1/5 more than ducks. How many ducks does this farmer raise?
某养殖户养了鸡300只，比养的鸭多(1/5)，这个养殖户养鸭多少只？
<gadget id="calculator">1 / 5</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">300 / (6/5)</gadget>
<output>250</output>

<result>250</result>