Zhang Ming reads a 120-page story book. He reads (1/4) of the whole book on the first day, and the rest (2/5) on the second day. Which page should he read from on the third day?
张明看一本120页的故事书，第一天看了全书的(1/4)，第二天看了余下的(2/5)，第三天应从第几页看起？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">120 * (1/4)</gadget>
<output>30</output>

<gadget id="calculator">120 - 30</gadget>
<output>90</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">90 * (2/5)</gadget>
<output>36</output>

<gadget id="calculator">30 + 36 + 1</gadget>
<output>67</output>

<result>67</result>