Altair moves at a speed of 26 kilometers per second, and Vega moves at a speed (7/13) of that of Altair. How many kilometers does Vega move per second?
牛郎星运行的速度是26千米/秒，织女星运行的速度是牛郎星的(7/13)，织女星每秒运行多少千米？
<gadget id="calculator">7 / 13</gadget>
<output>7/13 = around 0.538462</output>

<gadget id="calculator">26 * (7/13)</gadget>
<output>14</output>

<result>14</result>