A road has been built for 200 meters, but (2/3) is left unrepaired. How long is this road in meters?
修一条公路，修了200米，还剩(2/3)没有修，这条路长多少米？
<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">200 / (1/3)</gadget>
<output>600</output>

<result>600</result>