The express train travels from station A to station B, and the slow train travels from station B to station A. The two trains depart at the same time. The express train travels the whole distance (2/15) per hour, and the slow train travels 56 kilometers per hour. After the two cars meet, the slow train travels the whole journey (1/30) to reach the midpoint. How many kilometers are there between the two stations A and B?
快车从甲站开往乙站，慢车从乙站开往甲站，两车同时出发，快车每小时行全程的(2/15)，慢车每小时行56千米．两车相遇后，慢车再行全程的(1/30)到达中点，甲、乙两站相距多少千米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">(1/2) + (1/30)</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(8/15) / (2/15)</gadget>
<output>4</output>

<gadget id="calculator">(1/2) - (1/30)</gadget>
<output>7/15 = around 0.466667</output>

<gadget id="calculator">4 / (7/15)</gadget>
<output>60/7 = around 8.571429</output>

<gadget id="calculator">56 * (60/7)</gadget>
<output>480</output>

<result>480</result>