When a jug is half full of water, it can quench the thirst of 6 crows. If there are 8 crows that need to quench their thirst, how much water in the jug should account for the volume of the jug.
当一只水壶盛有一半水的时候可以够6只乌鸦解渴，若现在有8只乌鸦需要解渴，水壶中的水要占水壶体积的多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) / 6</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 8</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>