A and B ride bicycles from towns A and B, which are 2,000 meters apart, to town C, and B is between A and C. It is known that towns A and C are 8 kilometers apart. When A arrives at town C, B is still 0.4 kilometers away from town C. Ask how far away from town C can A catch up with B?
甲、乙两人分别骑自行车从相距两千米的A、B两镇出发去C镇，B在A、C中间．已知A、C镇相距8千米，当甲到C镇时，乙离C镇还有0.4千米，问甲在离C镇多远处追上乙的？
<gadget id="calculator">10 - 7</gadget>
<output>3</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) * 10</gadget>
<output>20/3 = around 6.666667</output>

<gadget id="calculator">8 - (20/3)</gadget>
<output>4/3 = around 1.333333</output>

<result>4/3 = around 1.333333</result>