Wang Fang reads a 180-page story book. She reads (1/4) of the book on the first day and the rest (1/3) on the second day. How many pages did she read on the second day?
王芳看一本180页的故事书，第一天看了这本书的(1/4)，第二天看了余下的(1/3)，第二天看了多少页？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">180 * (1/4)</gadget>
<output>45</output>

<gadget id="calculator">180 - 45</gadget>
<output>135</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">135 * (1/3)</gadget>
<output>45</output>

<result>45</result>