A book has 180 pages. Xiaolin read 30% of the whole book on the first day and 45% of the whole book on the second day. What page should he read on the third day?
一本书有180页，小林第一天看了全书的30%，第二天看了全书的45%，第三天应从第几页看起？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">45 / 100</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(3/10) + (9/20)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">180 * (3/4)</gadget>
<output>135</output>

<gadget id="calculator">135 + 1</gadget>
<output>136</output>

<result>136</result>