A road is built, 900 meters are built on the first day, and the remaining length is 300 meters less than the total length (3/4), what is the total length of this road in meters?
修一条公路，第一天修了900米，剩下的长度比全长的(3/4)少300米，这条公路的全长是多少米？
<gadget id="calculator">900 - 300</gadget>
<output>600</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">600 / (1/4)</gadget>
<output>2_400</output>

<result>2_400</result>