Question 522751
Jason started reading a book with 450 pages.
 He finished reading 300 pages.
 In its simplest form, what fraction of the book is left unread.
:
Find how many pages left for him to read;
450-300 = 150 pages unread
then
{{{150/450}}}, we can reduce this fraction, divide numerator and denominator by 150, results:
{{{1/3}}} of the book unread