I obviously want to read a story book, the book has 80 pages in total, I read (1/4) on the first day, and 30 pages on the second day, what percentage of the book did I read in total in the two days?
明明要看一本故事书，全书共80页，第一天看了(1/4)，第二天看了30页，明明两天一共看了这本书的几分之几？
<gadget id="calculator">30 / 80</gadget>
<output>3/8 = around 0.375</output>

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

<gadget id="calculator">(3/8) + (1/4)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>