Cars A and B are traveling towards each other from places A and B at the same time. After 5 hours, car A is still (3/8) the full length (3/8) away from place B, and car B just arrives at the midpoint. Car traveled 15 kilometers more than car B. Find the distance in kilometers between A and B.
甲、乙两车同时分别从A、B两地相向而行，经过5小时，甲车离B地还有全长的(3/8)，乙车刚好到达中点，已知甲车每小时比乙车多行驶了15千米．求AB两地相距多少千米．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(5/8) / 5</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) / 5</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/8) - (1/10)</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">15 / (1/40)</gadget>
<output>600</output>

<result>600</result>