Xiao Ming reads a 620-page book, reads 1/3 of the whole book on the first day, and reads 31 pages on the second day, what fraction of the whole book has been read in two days?
小明看一本620页的书，第一天看了全书的(1/3)，第二天看了31页，两天共看了全书的几分之几？
<gadget id="calculator">31 / 620</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/20) + (1/3)</gadget>
<output>23/60 = around 0.383333</output>

<result>23/60 = around 0.383333</result>