A 120-page story book, read 25% of the whole book on the first day, and 35% of the whole book on the second day, from which page should you read it on the third day?
一本120页的故事书，第一天看了全书的25%，第二天看了全书的35%，第三天应从第几页看起？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">(1/4) + (7/20)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">120 * (3/5)</gadget>
<output>72</output>

<gadget id="calculator">72 + 1</gadget>
<output>73</output>

<result>73</result>