A car has traveled 40% of the journey from point A to point B, and there are 120 kilometers left to go from point B. How many kilometers has this car traveled?
一辆汽车从甲地开往乙地，已行了全程的40%，离乙地还剩120千米，这辆汽车已行了多少千米？
<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">120 / (3/5)</gadget>
<output>200</output>

<gadget id="calculator">200 * (2/5)</gadget>
<output>80</output>

<result>80</result>