А) 3\11 + 5\22 = (66 + 55) / 242 = 121 / 242 = 1/2
Б) 11\12 - 7\15 = (165 - 84) / 180 = 81 / 180 = 9 / 20
В) 11\15 - 3\20 + 1\30 = (88 - 27 + 2) / 600 = 63 / 600 = 21 / 200
А) 3\11 + 5\22 = (66 + 55) / 242 = 121 / 242 = 1/2
Б) 11\12 - 7\15 = (165 - 84) / 180 = 81 / 180 = 9 / 20
В) 11\15 - 3\20 + 1\30 = (88 - 27 + 2) / 600 = 63 / 600 = 21 / 200