Eight eggs weigh (2/5) kilograms, and one egg weighs (1/3) that of a goose egg. How many kilograms does a goose egg weigh?
8个鸡蛋重(2/5)千克，一个鸡蛋的重量相当于一个鹅蛋的(1/3)．一个鹅蛋大约重多少千克？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(2/3) / 8 / (1/3)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>