Fractions

BNF notation
<fraction> ::= <single-fraction> | <double-fraction>
<double-fraction> ::= <single-fraction> "/" <single-fraction>
<single-fraction> ::= [<sign>] <decimal-digits> "/" [<sign>] <decimal-digits>
<sign> ::= "+" | "-"
<decimal-digits> ::= <decimal-digit> | <decimal-digits> <decimal-digit>
<decimal-digit> ::= "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"

Range:
Numerator and denominator must be between
-2147483647 to 2147483647
-MAX32 to MAX32 ( predefined variables )

Examples:
1/2, -3/4, +5/6, 5/-4, 1/2/3/4, -1/+2/-3/+4