Among the six numbers 7, 6, 5, 8, 8, and 9, what is the median.
在7，6，5，8，8，9六个数中，中位数是多少．
<gadget id="calculator">7 + 8</gadget>
<output>15</output>

<gadget id="calculator">15 / 2</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>