Answer:
To find out how many 1 1/2 foot boards can be cut from a 12 foot long board, we need to divide the length of the board by the length of each board.
First, we need to convert 1 1/2 feet to an improper fraction.
1 1/2 = (2 x 1 + 1) / 2 = 3/2
So, each board is 3/2 feet long.
Next, we divide the length of the 12 foot long board by the length of each board:
12 / (3/2) = 12 x 2/3 = 24/3 = 8
Therefore, 8 boards of length 1 1/2 feet can be cut from a 12 foot long board.
Explanation: