связующая нить(In terms of private buyers, Toby Walker, C&N sales director says their only common denominator is wealth. | The rabbits live in pairs in completely separate accommodation and therefore as the only common denominator between them is hay I am ... Alexander Demidov)
общая черта(The common denominator was that we had all worked for the same company. CALD. The common denominator of both types of novel is the vulnerable threatened heroine. LDCE. The common denominator in all his novels is the use of the supernatural. MED Alexander Demidov)
слабое звено определяет устойчивость структуры, системы в целом("The press can resist the standard of the lowest common denominator, the rationalization that all news is fit to print that has appeared anywhere else" (Edward M. Kennedy).The most basic, least sophisticated level of taste, sensibility, or opinion among a group of people. mym0use)
наименьший общий знаменатель(the lowest common denominator the least attractive, least intelligent people or features in a situation: trashy TV programs that appeal to the lowest common denominator. Alexander Demidov)