Grandma Wang raises 4 ducks and 12 chickens at home. The number of ducks is equal to the number of chickens.
王奶奶家养鸭4只，养鸡12只．养鸭的只数是鸡的多少．
<gadget id="calculator">4 / 12</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>