Car A and car B drive out from the two cities A and B at the same time. A travels 55 kilometers per hour, and B travels 35 kilometers per hour. After 1 hour, the distance between the two cars is (2/5) the whole distance. How many kilometers is the distance between A and B? rice?
甲乙车从A、B两城同时相对开出，甲每小时行55千米，乙每小时行35千米1小时后两车相距全程的(2/5)，A、B两城相距多少千米？
<gadget id="calculator">55 + 35</gadget>
<output>90</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">90 / (3/5)</gadget>
<output>150</output>

<result>150</result>