Xiaohua insists on morning exercises and runs a total of 3.5 kilometers a week. How many kilometers does Xiaohua run on average every day? (solution with equation)
小华坚持晨练，一个星期共跑3.5千米，小华平均每天跑多少千米？(用方程解答)
<gadget id="calculator">3.5 / 7</gadget>
<output>0.5</output>

<result>0.5</result>