ParseFractions takes the string of a fraction as input i.e "2/3" and converts this to the equivalent fraction else returns an error.

SafeAddInt32 adds two int32 integers.

SafeConvertInt32 takes a int and checks if it overflows.

SafeConvertInt8 takes an int64 and checks if it overflows.

SafeConvertUint8 takes an int64 and checks if it overflows.

SafeSubInt32 subtracts two int32 integers.

Fraction defined in terms of a numerator divided by a denominator in uint64 format.