Xiaogang bought a science novel, read the whole book (2/8) on the first day, and read more (1/8) of the book on the second day than on the first day, and read several parts of the book in two days. How much?
小刚买了一本科学小说，第一天看了全书的(2/8)，第二天比第一天多看了这本书的(1/8)，两天一共看了全书的几分之几？
<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

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

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

<gadget id="calculator">(1/4) + (3/8)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>