a book shelf is 3 1/2 feet long. Each book is 5/8 inches wide. How many books will fit on the shelf?

Question

this is a word problem in 6 th grade math

Answer 1

(3 1/2 ft.) / 5/8 in.

 

both values must be in same increments; change feet to inches

 

3 1/2 ft = 7/2 ft

 

(7/2) 12/1 = 42 in.

 

Then:  42 / (5/8)

 

          42 (8/5)

 

          336/5

 

          67 1/5 

 

you can stack 67 books

Answer 2

3.5 feet = 3 feet 6 inches

3 * 12 = 36

36 + 6 = 42 inches long

 

42 / ⁵/₈ → 42 * ⁸/₅ = ^42*8/₅

336 / 5 = 67.2

 

We can't put up part of a book, so we can fit 67 books.