A book with 150 pages, read 10% in the first week and 36% in the second week, how many pages were read in total in two weeks.
一本书150页，第一周看了10%，第二周看了36%，两周一共看了多少页．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">36 / 100</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">(1/10) + (9/25)</gadget>
<output>23/50 = around 0.46</output>

<gadget id="calculator">150 * (23/50)</gadget>
<output>69</output>

<result>69</result>