You are measuring a board so you can cut it. You need to cut the wood from 1/1/4 in. to 1/2 in. How long is the piece of wood you are going to cut?

To calculate the length of wood you need to cut, you subtract 1/2 inch from 1 and 1/4 inch.

1 and 1/4 inch = 1 + 1/4 = 4/4 + 1/4 = 5/4 inches.

Thus, the length of wood to be cut is:

5/4 inches - 1/2 inch = 5/4 - 2/4 = 3/4 inch.

Therefore, you need to cut a piece of wood that is 3/4 inch long.