The average lifespan of eels is 55 years. The lifespan of goldfish in captivity is that of eel (6/11). How long do goldfish live?
鳗鱼的寿命一般是55年．在人工饲养条件下金鱼的寿命是鳗鱼的(6/11)．金鱼的寿命是多少年？
<gadget id="calculator">6 / 11</gadget>
<output>6/11 = around 0.545455</output>

<gadget id="calculator">55 * (6/11)</gadget>
<output>30</output>

<result>30</result>