One can of Sprite 0.33L, drink it (2/3), how much L is left.
一听雪碧0.33L，喝去(2/3)，还剩多少L．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">0.33 * (1/3)</gadget>
<output>0.11</output>

<result>0.11</result>