Xiao Ming walks a distance of 50 meters, 80 steps for the first time, 78 steps for the second time, and 82 steps for the third time. What is the average length of his step?
小明走50米长的距离，第一次走80步，第二次走78步，第三次走82步．他走一步的平均长度是多少米．
<gadget id="calculator">80 + 78 + 82</gadget>
<output>240</output>

<gadget id="calculator">240 / 3</gadget>
<output>80</output>

<gadget id="calculator">50 / 80</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>