A road has been repaired for 405.65 kilometers, which is 135.65 kilometers longer than the road that has not been repaired. How long is this road?
一条公路已修好了405.65千米，比没修好的多135.65千米，这条公路多长？
<gadget id="calculator">405.65 - 135.65</gadget>
<output>270</output>

<gadget id="calculator">270 + 405.65</gadget>
<output>675.65</output>

<result>675.65</result>