Question

Each shelf on Sandra's bookcase is 42 1/2 inches long each book she wil place on a shelf is 3/4 inches wide what is the greatest number of books of this size can she fit on one shelf?

(the answer is 56 but I need to have the work)

Answer 1

hey! 42 1/2 inches is 85/2 inches.

to find the number of books she can fit on the shelf, she has to divide the total amount of inches (85/2) by the width of each book (3/4)

dividing by a fraction is the same thing as multiplying by its reciprocal, so… 85/2 x 4/3 = 170/3

170/3 = about 56 books (rounded to the nearest whole number)

i hope this helped!! :))

Answer 2

Answer: yeah 56

Explanation:

42.5 divided by .75 is 56.666666666666666666666666666667

And with this type of question, you have to round down to a whole number so, 56

Hope this helps :)