Cars A and B start from AB at the same time at a speed of 5:4 and drive toward each other. After meeting, car A slows down by 20%, car B speeds up by 20%, and continues to move forward. When car A is 10 kilometers away from point B, car B is still 18 kilometers away from point A. How many kilometers are the distance between A and B?
甲、乙两车以5：4的速度同时从AB两地出发相向而行，相遇后甲车降速20%，乙车提速20%，继续前进．甲车距B地10千米时，乙车距A地还有18千米，AB两地相距多少千米？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">4 * (6/5)</gadget>
<output>24/5 = around 4.8</output>

<gadget id="calculator">(4/5) / (24/5)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">5 * (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 / (5/6)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(6/5) * 10</gadget>
<output>12</output>

<gadget id="calculator">18 - 12</gadget>
<output>6</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">(6/5) * (4/9)</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">(5/9) - (8/15)</gadget>
<output>1/45 = around 0.022222</output>

<gadget id="calculator">6 / (1/45)</gadget>
<output>270</output>

<result>270</result>