Jingjing read a 300-page book in 3 days. She read (1/4) of the whole book on the first day, and the rest (2/5) on the second day. How many pages did she read on the third day?
晶晶3天看完一本300页的书，第一天看了全书的(1/4)，第二天看了余下的(2/5)，第三天看了多少页？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">300 * (1/4)</gadget>
<output>75</output>

<gadget id="calculator">300 - 75</gadget>
<output>225</output>

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

<gadget id="calculator">225 * (2/5)</gadget>
<output>90</output>

<gadget id="calculator">75 + 90</gadget>
<output>165</output>

<gadget id="calculator">300 - 165</gadget>
<output>135</output>

<result>135</result>