The water in the conical container is exactly its volume (8/27). Q: What fraction of the height of the container is the height of the water surface?
圆锥形容器内装的水正好是它容积的(8/27)．问：水面高度是容器高度的几分之几？
<gadget id="calculator">3 / 1</gadget>
<output>3</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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