Xiao Ming reads a 100-page story book. He reads (1/5) of this book on the first day and (1/4) of this book on the second day. Which day does he read more? How many more pages?
小明看一本100页的故事书，第一天看了这本书的(1/5)，第二天看了这本书的(1/4)，哪天看的多？多多少页？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">100 * (1/4)</gadget>
<output>25</output>

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

<gadget id="calculator">100 * (1/5)</gadget>
<output>20</output>

<gadget id="calculator">25 - 20</gadget>
<output>5</output>

<result>5</result>