Xiao Ming bought a story book. He read (3/8) of the book on the first day, and read less (1/8) of the total pages than on the second day. What percentage of the book is left unread?
小明买了一本故事书．他第一天看了这本书的(3/8)，比第二天少看了总页数的(1/8)，还剩这本书的几分之几没有看？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

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

<gadget id="calculator">(3/8) + (1/8)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (3/8) - (1/2)</gadget>
<output>1/8 = around 0.125</output>

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