24 inches minus 3 3/8 inches is 20 5/8 inches (20.625″, 523.88 mm).
How to Calculate It
- Convert to a common denominator: 24 = 192/8, 3 3/8 = 27/8
- Subtract: 192/8 − 27/8 = 165/8
- Simplified: 20 5/8
On the Tape Measure
The answer 20 5/8 inches (20.625″) is a standard mark on all tapes. This comes up when trimming a piece to fit after accounting for material thickness or gap requirements.
Common Uses in Woodworking
This calculation appears when cutting pieces to fit inside a frame, finding the remaining length after a cut, or calculating the gap between two components. Enter the measurements directly in TapeMath for instant results on the visual tape.
In TapeMath: type 24, tap −, type 3 3/8, tap =. The result 20 5/8″ appears on the tape canvas immediately.