There are 300 chickens, ducks belong to chickens (4/5), geese belong to chickens (2/3), how many geese are there? (Write down the corresponding equivalence relationship)
鸡有300只，鸭是鸡的(4/5)，鹅是鸡的(2/3)，鹅有多少只？(写出相应的等量关系)
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">300 * (2/3)</gadget>
<output>200</output>

<result>200</result>