Sally can read 15 pages of a book in 1/8 of an hour. what is sally's rate of pages per hour?

To find the rate you need to divide 15 by 1/8 and you get 120 pages per hour as your answer

So If she can read 15 pages in 1/8 of an hour. Then you would know that in 1 hour she would read 8 x as many as she reads in 1/8 of an hour. so the answea would be 8 x 15 = 120 pages