Li Hua spends 1/4 of the whole day at school, and sleeps 2/3 of his time at school. How many hours does Li Hua sleep every day?
李华每天在学校的时间占全天的(1/4)，在校时间是睡眠时间的(2/3)，李华每天睡眠时间是多少小时．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(1/4) / (2/3)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">24 * (3/8)</gadget>
<output>9</output>

<result>9</result>