Cars A and B start from cities A and B at the same time and drive toward each other. After a period of time, car A traveled the entire distance (2/3), and car B traveled 45% of the distance. At this time, the distance between the two cars is 35 kilometers. How many kilometers are there between A and B?
甲、乙两车同时从A、B两城出发，相向而行．经过一段时间后，甲车行了全程的(2/3)，乙车行了全程的45%，这时两车相距35千米．A、B两城相距多少千米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">45 / 100</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(9/20) - 1</gadget>
<output>-11/20 = around -0.55</output>

<gadget id="calculator">(2/3) + (-11/20)</gadget>
<output>7/60 = around 0.116667</output>

<gadget id="calculator">35 / (7/60)</gadget>
<output>300</output>

<result>300</result>