Chris has 12 boards, each 5 3/4 feet long. What is the combined length of all 12 boards?
5 3/4 = 5 + 3 / 4 = 4 • 5 / 4 + 3 / 4 =
20 / 4 + 3 / 4 = 23 / 4
12 • 5 3/4 = 12 • 23 / 4 = 276 / 4 = 69
12 • 5 3/4 ft = 69 ft
The combined length of all 12 boards = 69 ft