A road has been built for 600 meters, which happens to be unrepaired (2/3). How many meters is the total length of this road?
修一条路，已经修了600米，正好是未修的(2/3)，这条路全长多少米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">600 / (2/3)</gadget>
<output>900</output>

<gadget id="calculator">900 + 600</gadget>
<output>1_500</output>

<result>1_500</result>