The length of a classroom is 7 meters 5 decimeters, and the width is 6 meters 8 decimeters. There are 17 chess tables in the room. How many square meters does each chess table occupy on average?
一个教室的长是7米5分米，宽是6米8分米，室内共放置17张棋桌，平均每张棋桌占多少平方米？
<gadget id="calculator">7.5 * 6.8</gadget>
<output>51</output>

<gadget id="calculator">51 / 17</gadget>
<output>3</output>

<result>3</result>