To build a road, 300 meters were built on the first day, the full length (1/4) was built on the second day, and the full length (5/18) was built in two days. How many meters is this road?
修一条路，第一天修了300米，第二天修了全长的(1/4)，两天共修了全长的(5/18)，这条路长多少米？
<gadget id="calculator">5 / 18</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(5/18) - (1/4)</gadget>
<output>1/36 = around 0.027778</output>

<gadget id="calculator">300 / (1/36)</gadget>
<output>10_800</output>

<result>10_800</result>