A road, Team A has repaired 25% of the total length, Team B has repaired 40% of the total length, and there is still 70 kilometers left to be repaired. How long is this road in kilometers? (Write the equality relationship first, and then list the equation solution)
一条公路，甲队修了全长的25%，乙队修了全长的40%，还剩下70千米没有修．这条公路全长多少千米？(先写相等关系，再列方程解答)
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(1/4) + (2/5)</gadget>
<output>13/20 = around 0.65</output>

<gadget id="calculator">1 - (13/20)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">70 / (7/20)</gadget>
<output>200</output>

<result>200</result>