car drives from place A to place B, and travels the entire distance (1/3), and there is still 45 kilometers away from the end point. How many kilometers are there between places A and B?
一辆汽车，从甲地开往乙地，行了全程的(1/3)，离终点还有45千米，甲乙两地相距多少千米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">45 / (2/3)</gadget>
<output>135/2 = around 67.5</output>

<result>135/2 = around 67.5</result>