When the car travels from place A to place B, when the whole journey (1/4) is 12 kilometers, the ratio of the traveled distance to the untraveled distance is 2:3, how many kilometers is the whole journey?
汽车从甲地往乙地，当行了全程的(1/4)又12km时，这时已行路程与未行路程的比是2：3，全程多少千米？
<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(2/5) - (1/4)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">12 / (3/20)</gadget>
<output>80</output>

<result>80</result>