Cars A and B are traveling toward each other from places A and B at the same time. When car A travels (3/5) of the whole journey, it happens to meet B. Car B travels 56 kilometers per hour, and car A needs 5 hours to travel from point A to point B. Find the distance between A and B in kilometers?
甲乙两车同时从A、B两地相向而行，当甲车行了全程的(3/5)时，正好与乙相遇．一直乙车每小时行56千米，甲车从A地走到B地需要行5小时．求A、B两地相距多少千米？
<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">(3/5) / (2/5)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">56 * (3/2) * 5</gadget>
<output>420</output>

<result>420</result>