A car has been driving from city A to city B (2/5), and now it is 60 kilometers away from city B. How many kilometers is the distance between A and B?
一辆汽车从A城开往B城，已行了(2/5)，现在离B城还有60千米，AB两地相距多少千米．
<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">60 / (3/5)</gadget>
<output>100</output>

<result>100</result>