To build a canal, 15% of the total length was built on the first day, and 20% of the total length was repaired on the second day, totaling 1190 meters. How long is this canal in meters?
修一条水渠，第一天修了全长的15%，第二天修了全长的20%，共修了1190米．这条水渠全长多少米？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(3/20) + (1/5)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1_190 / (7/20)</gadget>
<output>3_400</output>

<result>3_400</result>