It takes 8 hours for an express train to travel from station A to station B, and 12 hours for a slow train to travel from station B to station A. The two trains depart opposite each other at the same time. When they meet, the express train travels 48 kilometers longer than the slow train. How many kilometers are there between A and B?
一列快车从甲站到乙站需要8小时，一列慢车从乙站到甲站需要12小时，两车同时从两站相对开出，相遇时快车比慢车多行48千米．甲、乙两站相距多少千米？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/8) + (1/12)</gadget>
<output>5/24 = around 0.208333</output>

<gadget id="calculator">1 / (5/24)</gadget>
<output>24/5 = around 4.8</output>

<gadget id="calculator">(1/8) * (24/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(1/12) * (24/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">48 / (1/5)</gadget>
<output>240</output>

<result>240</result>