A person spends about (1/4) time studying and working, (1/6) time participating in recreational or sports activities, and the rest of the time sleeping and resting. What fraction of the day do you sleep and rest every day?
一个人一天中大约有(1/4)的时间学习和工作，(1/6)的时间参加文娱或体育活动，剩下的时间睡觉休息．每天的睡眠休息时间约占一天时间的几分之几？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/4) - (1/6)</gadget>
<output>7/12 = around 0.583333</output>

<result>7/12 = around 0.583333</result>