The area of a triangle is 0.025 hectares, the base is (8/3) meters, and the height is in meters.
一块三角形地面积是0.025公顷，底是(8/3)米，高是多少米．
<gadget id="calculator">0.025 * 10_000</gadget>
<output>250</output>

<gadget id="calculator">8 / 3</gadget>
<output>8/3 = around 2.666667</output>

<gadget id="calculator">2 / (8/3)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">250 * (3/4)</gadget>
<output>375/2 = around 187.5</output>

<result>375/2 = around 187.5</result>