The little program works on MS-DOS and can also work on the DOS embedded in the Windows environment. It works with 50 decimal positions. I think it could be useful for teachers and students and other people, who has to calculate with fractions. The program is public domain.
If you enable the 'write to file' option, your calculations will be saved over the file FRACTION.TXT. If you work directly from DOS, this file will be installed on your work-directory. If you create a direct access, you will find your file 'FRACTION.TXT' in the same directory as the EXE-file.