Answer:
7/6 feet
Explanation:
The board is 3 and 1/2 feet long, so it is 3+(1/2) feet long.
3 + 1/2 = ?
3/1 + 1/2 = ?
6/2 + 1/2 = ?
(6 + 1)/2 = ?
= 7/2
3 + 1/2 = 7/2
In other words, the board is 7/2 feet long.
Now we have to divide by 3 since Andrea is cutting the board in three pieces.
So:
(7/2)/3 or (7/2) ÷ 3 or
or (7/2) × (1/3)
= 7/(2×3)
= 7/6
So we found that each piece (after cutting the board into three pieces) is 7/6 feet long.