Выполните сложение 3/25 +11/45
3/25 + 11/45 = = (3*9)/(25*9) + (11*5)/(45*5) = = 27/225 + 55/225 = = (27 + 55) / 225 = = 82/225
3/25+11/45=27/(25*9)+55/(45*5)=82/225