Question

3 1/2 feet are cut off a board that is 12 1/4 feet long. How long is the remaining part of the board?

Answer 1

Original length of board = 12¼ feet.
Length cut off = 3½

Remaining part =
$12 \frac{1}{4} - 3 \frac{1}{2} \\ = \frac{49}{4} - \frac{7}{2} \\ = \frac{49 - 14}{4} \\ = \frac{35}{4} feet \\ or \: 8 \frac{3}{4} feet$

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