Obviously reading a book, I read (1/4) of the whole book on the first day, (1/3) of the whole book on the second day, and read less (1/6) than the total of the two days on the third day, How much of the whole book did you read on the third day?
明明看一本书，第一天看了全书的(1/4)，第二天看了全书的(1/3)，第三天看的比两天看的总数少(1/6)，第三天看了全书的几分之几？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/3) - (1/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/4) + (1/6)</gadget>
<output>5/12 = around 0.416667</output>

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