ashlynpadgett1337 ashlynpadgett1337 21-03-2020 Mathematics contestada When two fractions with different denominators are to be added using the standard procedure, which of these must first be found? Select right answer 1.The GCF (Greatest Common Factor) of the fractions 2.The prime factorization of the fractions’ numerators 3.The LCD (Least Common Denominator) of the fractions 4.The mean value of the denominators