Fraction to Mixed Number

Create a function that takes a string representing a fraction, and return a string representing that input as a mixed number.

• Mixed numbers are of the form 1 2/3 — note the space between the whole number portion and the fraction portion.
• Resulting fractions should be fully reduced (see example #2).
• If a result is a whole number with no fractional remainder, return only the whole number portion (see example #3).
• If a result is only fractional with no whole number, return only the fractional portion (see example #4).
• If a result is negative, the whole number should carry the negative sign. If the result would not have a whole number portion, the numerator of the fractional portion should carry the negative sign (see examples #5 - #7).

Examples

mixed_number("5/4") ➞ "1 1/4"

mixed_number("6/4") ➞ "1 1/2"

mixed_number("8/4") ➞ "2"

mixed_number("4/6") ➞ "2/3"

mixed_number("-1/4") ➞ "-1/4"

mixed_number("-5/4") ➞ "-1 1/4"

mixed_number("-8/4") ➞ "-2"

Notes

All provided inputs will be formatted similarly, negative numbers will be provided in the numerator portion only, and all inputs will contain no spaces, invalid characters, or zero denominators.