We ran across an interesting app at the Windows Marketplace that will help those find it difficult to convert decimals into fractions.
Fraction Finder will run you $1.99 and if you need an easy way to convert .689" into fractions you need not look further. Fraction Finder converts inches, milimeters, centimeters and meters. Additionally, Fraction Finder will round the conversion to the nearest 1/64th, 1/32nd, 1/16th, 1/8th or 1/4th of an inch.
For example, Fraction Finder will convert 3.36 meters into 11 feet, 9/32 inches. 28mm would equal 1 and 1/8th inch. 9,834 inches equals 819 feet, 6 inches.
In testing out the application, I found it to be very stable with no bugs, glitches or lock-ups experienced. If you need a simple yet handy means to convert decimals into fractions, Fraction Finder is worth a look.