12 inches minus 3 5/8 inches is 8 3/8 inches (8.375″, 212.72 mm).
How to Calculate It
- Convert to a common denominator: 12 = 96/8, 3 5/8 = 29/8
- Subtract: 96/8 − 29/8 = 67/8
- Simplified: 8 3/8
On the Tape Measure
The answer 8 3/8 inches (8.375″) 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 12, tap −, type 3 5/8, tap =. The result 8 3/8″ appears on the tape canvas immediately.