Alocal concert promoter purchases 2 3/4 pages of ads. when one of the concerts is cancelled, the promoter cancels 1 5/8 pages of ads. how much advertising space is the concert promoter actually using?

1 pages

Step-by-step explanation:

Since the concert promoter started with 2 pages of ads but had to cancel 1 , subtracting the cancelled amount from the original amount will give the amount of advertising space the promoter is now actually using:

 2  = 2

- 1      - 1

     1 pages

In order to subtract fractions, you need to have like denominators, so you need to convert into an equivalent fraction with a denominator of '8'.  Since 4 x 2 = 8, then you also need to multiply the numerator by the same factor: 3 x 2 = 6.