A car drives from place A to place B. It travels the whole distance (1/4) on the first day and (1/3) the whole distance on the second day. At this time, it is still 140 kilometers away from place B. How many kilometers are there between A and B?
一辆汽车从甲地开往乙地，第一天行了全程的(1/4)，第二天行了全程的(1/3)，这时离乙地还有140千米．甲、乙两地相距多少千米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/4) - (1/3)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">140 / (5/12)</gadget>
<output>336</output>

<result>336</result>