A road has been repaired for 25km, which is exactly 5km longer than the one that has not been repaired. What fraction of the total length is the repaired road?
一条公路已修好了25km，比没修的正好多5km，已修好的公路是全长的几分之几？
<gadget id="calculator">25 - 5</gadget>
<output>20</output>

<gadget id="calculator">20 + 25</gadget>
<output>45</output>

<gadget id="calculator">25 / 45</gadget>
<output>5/9 = around 0.555556</output>

<result>5/9 = around 0.555556</result>