Question

A local 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?

Answer 1

Answer:

1$\frac{1}{8}$ pages

Step-by-step explanation:

Since the concert promoter started with 2 $\frac{3}{4}$ pages of ads but had to cancel 1 $\frac{5}{8}$, subtracting the cancelled amount from the original amount will give the amount of advertising space the promoter is now actually using:

 2 $\frac{3}{4}$  = 2 $\frac{6}{8}$

- 1 $\frac{5}{8}$      - 1 $\frac{5}{8}$

     1$\frac{1}{8}$ pages

In order to subtract fractions, you need to have like denominators, so you need to convert $\frac{3}{4}$ 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.