noun
1. : the lowest common multiple of two or more denominators
2. : something (as a quality or level of taste) that typifies or is common, acceptable, or comprehensible to all or the greatest possible number of individuals
the committee system … reduces all ideas to the lowest common denominator — M.W.Straight
broadcasting … falls into the error of producing programs at the lowest common denominator — Franklin Dunham
living together in boredom, men exhibit their lowest common denominator — Clement Greenberg
the quest by … the movies and radio for lowest common denominators — John Collier b. 1884