A road has its full length (1/5) repaired on the first day, and its full length (2/9) on the second day. There are 560 meters left to be repaired. How long is this road in meters?
一条路，第一天修了全长的(1/5)，第二天修了全长的(2/9)，还剩560米没修，这条路全长多少米？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 - (1/5) - (2/9)</gadget>
<output>26/45 = around 0.577778</output>

<gadget id="calculator">560 / (26/45)</gadget>
<output>12_600/13 = around 969.230769</output>

<result>12_600/13 = around 969.230769</result>