Cars A and B are traveling toward each other from two places at the same time. After 1.5 hours, car A has traveled 70 kilometers, and car B has traveled 90 kilometers. At this time, the distance traveled by the two cars accounts for (2/5) of the distance between the two places. How many kilometers are the distance between the two places?
AB两车同时从两地相向而行，经过1.5小时，A车行了70千米，B车行了90千米，这时两车的路程占两地路程的(2/5)．两地相距多少千米？
<gadget id="calculator">70 + 90</gadget>
<output>160</output>

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

<gadget id="calculator">160 / (2/5)</gadget>
<output>400</output>

<result>400</result>