Barry read 1/2 of a book in the morning, and he read some more at night. By the end of the day,
he still had 1/3 of the book left to read. How much of the book did Barry read at night?
write it in a fraction
because if he read 1/2 in the day which is equal to 3/6, and he still had 1/3 left to read which is equal to 2/6, all you have to do is add the fraction and whatever is left is your answer which is 1/6