500
                                Find the factors for the numerator and denominator for the fraction 12/30 then use the greatest common factor to reduce the fraction
                                Factors of 12: 1, 2, 3, 4, 6, 12
Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
Greatest Common Factor: 6
Simplest Form: 2/5