A car drives from place A to place B, travels the whole distance (3/7), and there are 84 kilometers left. How many kilometers has the car traveled?
一辆汽车从甲地开往乙地，行驶了全程的(3/7)，还剩下84千米，这辆汽车行驶了多少千米？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">84 / (4/7)</gadget>
<output>147</output>

<gadget id="calculator">147 - 84</gadget>
<output>63</output>

<result>63</result>