To build a road, 20% of the total length was repaired on the first day, and 35% of the total length was repaired on the second day. A total of 550 meters was repaired in two days. How long is this road in total?
修一条公路，第一天修了全长的20%，第二天修了全长的35%，两天一共修了550米，这条公路一共有多长？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">(1/5) + (7/20)</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">550 / (11/20)</gadget>
<output>1_000</output>

<result>1_000</result>