The engineering team repaired a section of road, and repaired (2/5) of the full length on the first day, and (3/4)km on the second day, leaving 8.25km. How long is this road in kilometers?
工程队修一段公路，第一天修了全长的(2/5)，第二天修了(3/4)km，还剩8.25km．这段公路全长多少千米？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) + 8.25</gadget>
<output>9</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">9 / (3/5)</gadget>
<output>15</output>

<result>15</result>