A primary school student spends about (1/3) of the time studying and working in a day, which is less than the time of sleeping (1/8). What fraction of the time does the primary school student sleep in a day?
一个小学生一天中大约有(1/3)的时间学习和工作，比睡眠的时间少了一天时间的(1/8)，这个小学生一天中睡眠的时间约占一天时间的几分之几？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/3) + (1/8)</gadget>
<output>11/24 = around 0.458333</output>

<result>11/24 = around 0.458333</result>