road repair team repaired a road, 20% of it was repaired on the first day, and 15% on the second day, and there were still 1300 kilometers to be repaired. How many kilometers is this road?
某修路队修一条路，第一天修了20%，第二天修了15%，还有1300千米没修．这条路长多少千米？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (1/5) - (3/20)</gadget>
<output>13/20 = around 0.65</output>

<gadget id="calculator">1_300 / (13/20)</gadget>
<output>2_000</output>

<result>2_000</result>