It takes 8 hours for a fast train to go from place A to place B, and 12 hours for a slow train to go from place B to place A. The two cars leave from the two places at the same time and meet at a distance of 120 kilometers from the midpoint. The distance between the two places is How many kilometers?
一辆快车从甲地到乙地需8小时，一辆慢车从乙地到甲地需12小时，两车同时从两地想想开出，在距中点120千米处相遇，两地相距多少千米？
<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">2 / (1/5)</gadget>
<output>10</output>

<gadget id="calculator">120 * 10</gadget>
<output>1_200</output>

<result>1_200</result>