A certain electric vehicle specialty store sold 480 electric vehicles in the year before last, (1/6) more than the year before last year, and (1/4) more this year than last year. How many electric cars were sold this year?
某电动车专卖店前年销售了480辆电动车，去年比前年多销售了(1/6)，今年又比去年多销售了(1/4)．今年销售了多少辆电动车？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 + (1/6)</gadget>
<output>7/6 = around 1.166667</output>

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

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">480 * (7/6) * (5/4)</gadget>
<output>700</output>

<result>700</result>