A science book has 300 pages. Xiao Ming reads (1/6) on the first day, and the rest (1/5) on the second day. How many pages did he read on the second day?
一本科技书有300页，小明第一天看了(1/6)，第二天看了余下的(1/5)，第二天看了多少页．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(5/6) * (1/5)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">300 * (1/6)</gadget>
<output>50</output>

<result>50</result>