A car travels 40% of the way, and there are still 27 kilometers to the end. How many kilometers is the whole journey?
一辆汽车行驶全程的40%，距离终点还有27千米．全程多少千米？
<gadget id="calculator">40 / 100</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">27 / (3/5)</gadget>
<output>45</output>

<result>45</result>