Xiao Li plans to read a book in three days. He reads (1/3) of the whole book on the first day and (1/4) of the whole book on the second day, so how much should Xiao Li read ( Fill in a few fractions).
小李计划三天看完一本书，第一天看了全书的(1/3)，第二天看了全书的(1/4)，那么第三天小李应该看完全书的多少(填几分之几)．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<result>5/12 = around 0.416667</result>