A new operation is now stipulated: a#b=(((a+b))/3), then 8#7=how much.
现规定一种新的运算：a#b=(((a+b))/3)，则8#7=多少．
<gadget id="calculator">8 + 7</gadget>
<output>15</output>

<gadget id="calculator">15 / 3</gadget>
<output>5</output>

<result>5</result>