Stations A and C are 10 kilometers apart, and stations A and B are 2 kilometers apart. Car A starts from station A, and car B drives from station B to station C at the same time. When car A arrives at station C, the distance between car B and Station C is still 0.5 kilometers away. How far is car A from station C to catch up with car B?
A、C两个车站相距10千米，A、B两站相距2千米，甲车从A站，乙车从B站同时向C站开去，当甲车到达C站时，乙车距C站还有0.5千米，问甲车是在离C站多远时追上乙车的？
<gadget id="calculator">10 - 2 - 0.5</gadget>
<output>7.5</output>

<gadget id="calculator">10 / 7.5</gadget>
<output>1.333333</output>

<gadget id="calculator">1.333333 * 2</gadget>
<output>2.666666</output>

<gadget id="calculator">1.333333 - 1</gadget>
<output>0.333333</output>

<gadget id="calculator">2.666666 / 0.333333</gadget>
<output>8.000006</output>

<gadget id="calculator">10 - 8.000006</gadget>
<output>1.999994</output>

<result>1.999994</result>