Wang Qiang and Dongdong competed in running. When Dongdong ran to (2/3) of the whole distance, Wang Qiang had already run to (3/4) of the whole distance. At this time, they were 0.25 kilometers apart. How many kilometers is the whole journey?
王强和冬冬比赛跑步，当冬冬跑到全程的(2/3)时，王强已跑到全程的(3/4)，这时他们相距0.25千米．全程有多少千米？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/4) - (2/3)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">0.25 / (1/12)</gadget>
<output>3</output>

<result>3</result>