Car A and car B are driving from point A to point B at the same time. When car A travels 1/4 of the way, car B is still 140 kilometers away from point B. At this speed, when car A arrives at point B, How many kilometers is the distance between places A and B when car B travels the entire distance (8/9)?
甲乙两车同时从A地开往B地，当甲车行完全程的(1/4)时，乙车离B地还有140千米，照这样的速度，当甲车到达B地时，乙车行完全程的(8/9)，A、B两地相距多少千米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">(1/4) * (8/9)</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">140 / (2/9)</gadget>
<output>630</output>

<result>630</result>