Freddy has a shelf that is 72 over 5 inches wide. How many catalogs can Freddy arrange on the shelf if each catalog is 4 over 5 of an inch thick?
11, because the number of catalogs is 72 over 5 divided by 5 over 4
12, because the number of catalogs is 72 over 5 multiplied by 4 over 5
16, because the number of catalogs is 72 over 5 multiplied by 5 over 4
18, because the number of catalogs is 72 over 5 divided by 4 over 5

Question

Freddy has a shelf that is 72 over 5 inches wide. How many catalogs can Freddy arrange on the shelf if each catalog is 4 over 5 of an inch thick?
11, because the number of catalogs is 72 over 5 divided by 5 over 4
12, because the number of catalogs is 72 over 5 multiplied by 4 over 5
16, because the number of catalogs is 72 over 5 multiplied by 5 over 4
18, because the number of catalogs is 72 over 5 divided by 4 over 5

mathmale · Answer

As an example:  Chris is 20 years old.  For how many two-year periods has he lived so far?