The full length (1/5) was repaired on the first day and there was still 100 meters more, the remaining (2/7) was repaired on the second day, and the remaining (3/5) was repaired on the third day, and there were still 200 meters left to be repaired. How many meters is this path?
第一天修了全长的(1/5)还多100米，第二天修了余下的(2/7)，第三天修了剩下的(3/5)，还剩下200米没修，这条小路长多少米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">1 - (2/7)</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">200 / (2/5) / (5/7)</gadget>
<output>700</output>

<gadget id="calculator">700 + 100</gadget>
<output>800</output>

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

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">800 / (4/5)</gadget>
<output>1_000</output>

<result>1_000</result>