1 bottle of oil is 8 grams, if used every day (1/3), how many days can be used up.
1瓶油8克，如果每天用(1/3)，多少天可以用完．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / (1/3)</gadget>
<output>3</output>

<result>3</result>