The construction team has built a road, which has completed the full length (2/3), and is 12 meters away from the midpoint. How long is this road in meters?
工程队修一条路，已经修好全长的(2/3)，距离中点12米．这条路全长多少米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">12 / (1/6)</gadget>
<output>72</output>

<result>72</result>