A book has 160 pages in total. Xiao Ming reads (1/8) on the first day, how many pages should he read on the second day.
一本书共160页，小明第一天看了(1/8)，第二天应该从第多少页看起．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">160 * (1/8)</gadget>
<output>20</output>

<gadget id="calculator">20 + 1</gadget>
<output>21</output>

<result>21</result>