Xiaohong plans to read a 300-page "Story Book". She reads (2/5) of the whole book in the first week, and (1/4) of the whole book in the second week. What page should she start reading in the third week?
小红计划看一本300页的《故事书》，第一周看了全书的(2/5)，第二周看了全书的(1/4)，第三周应从第几页看起？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

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

<gadget id="calculator">(2/5) + (1/4)</gadget>
<output>13/20 = around 0.65</output>

<gadget id="calculator">300 * (13/20)</gadget>
<output>195</output>

<gadget id="calculator">195 + 1</gadget>
<output>196</output>

<result>196</result>