To enter a fraction in Excel you must enter a zero
followed by a space then the fraction. Omitting the zero and space will result
in Excel entering a date.
In sample below 3/4 was entered into cell A2 and resulted in a date.
In cell B2, 0 3/4 (zero, space, 3,/,4 - without commas) was entered
and a fraction, 3/4, (.75) was the result
When entering a compound fraction, enter the whole
number followed by a space and then the fraction.
In sample below, the space was omitted from the entry in cell A4.