A quadrilateral square, its four side lengths are 60 meters, 72 meters, 96 meters, 84 meters. Now you want to plant trees on the four sides. If the distance between every two trees on the four sides is equal, how many trees should be planted at least?
一个四边形的广场，它的四边长分别是60米，72米，96米，84米．现在要在四边上植树，如果四边上每两树的间隔距离都相等，那么至少要种多少棵树？
<gadget id="calculator">2 * 2 * 3</gadget>
<output>12</output>

<gadget id="calculator">60 / 12</gadget>
<output>5</output>

<gadget id="calculator">72 / 12</gadget>
<output>6</output>

<gadget id="calculator">96 / 12</gadget>
<output>8</output>

<gadget id="calculator">84 / 12</gadget>
<output>7</output>

<gadget id="calculator">5 + 6 + 8 + 7</gadget>
<output>26</output>

<result>26</result>