Xiao Ming bought a story book and read (1/5) of the whole book on the first day, and 30% of the whole book on the second day. It is known that this book has 180 pages, how many pages did Xiao Ming read on the second day compared to the first day?
小明买了一本故事书，第一天看了全书的(1/5)，第二天看了全书的30%．已知这本书有180页，小明第二天比第一天多看了多少页？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

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

<gadget id="calculator">(3/10) - (1/5)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">180 * (1/10)</gadget>
<output>18</output>

<result>18</result>