Xiaojing reads a 120-page story book. On the first day, she reads (1/5) of the whole book's pages, and on the second day, she reads (1/4) of the whole book's pages. How many pages did Xiaojing read in two days?
小静读一本120页的故事书，第一天读了全书页数的(1/5)，第二天又读了全书页数的(1/4)．小静两天一共读了多少页书？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/5) + (1/4)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">120 * (9/20)</gadget>
<output>54</output>

<result>54</result>