Mrs. Peterson is going to install new baseboard in her living room, family room, and dining room. The total length of baseboard needed is 60 yards. If Mrs. Peterson buys 2 2/3 yard long baseboards, how many pieces will she need? If she buys 3 1/3 yard long baseboards, how many pieces will she need?

Answer 1

If Mrs. Peterson buys 2 2/3 yard long baseboards, she will need a total of 60/(2 2/3) = 60/(8/3) = 60*(3/8) = 22.5 pieces.
If she buys 3 1/3 yard long baseboards, she will need a total of 60/(3 1/3) = 60/(10/3) = 60*(3/10) = 18 pieces. Answer: \boxed{18}.