A small family drives for a trip. The distance between the Panshan Road and the ordinary road is 2:5. The Panshan Road is 27.3 kilometers shorter than the ordinary road. How many kilometers did the family travel in total?
小小一家开车去游玩，盘山路与普通路的路程比是2：5，盘山路比普通路少行了27.3千米，他们一家共行了多少千米？
<gadget id="calculator">2 + 5</gadget>
<output>7</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(5/7) - (2/7)</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">27.3 / (3/7)</gadget>
<output>63.7</output>

<result>63.7</result>