Ava read 1/4 of a book on Monday, and 1/5 of it on Tuesday. There are 80 pages in the book. How many pages did she read altogether on both days?

2 Answers
Aug 15, 2016

Ava read 36 pages

Explanation:

Add 1/4 and 1/5 to get 9/20, So she read 9 out of every 20 pages which implies (x4) that she read 36 of the 80 pages.

Aug 15, 2016

36 " pages"

Explanation:

We can work out each fraction separately and add the number of pages. We can also add the fractions and work out the number of pages as a single amount.

1/4 xx80 + 1/5 xx80

=20 + 16

=36 " pages"

OR 1/4 +1/5= (5+4)/20

9/cancel20 xx cancel80^4

= 36 " pages"