Xiaohong reads a story book, and she has read this book in three days (7/8). Among them, (1/3) of the book was read on the first day, (5/12) of the book was read on the second day, and what percentage of the book was read on the third day?
小红看一本故事书，三天一共看了这本书的(7/8)．其中，第一天看了这本书的(1/3)，第二天看了这本书的(5/12)，第三天看了这本书的几分之几？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

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

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(7/8) - (1/3) - (5/12)</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>