The lid of the container containing the alcohol solution is opened, the alcohol evaporates (1/3) on the first day, and the remaining (3/4) evaporates on the second day. At the end of the second day, the remaining alcohol in the container accounts for the original how much.
存有酒精溶液的容器的盖子被打开，第一天酒精蒸发了(1/3)，第二天蒸发了剩下(3/4)，第二天结束时，容器内剩下的酒精占原来的多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(2/3) * (3/4)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/3) - (1/2)</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>