Найдите сумму: 4 2/9 + 3 5/18; 3 5/12 + 4 7/9 и т.д.

a) 4 2/9 + 3 5/18 = 7 13/18; b) 3 5/12 + 4 7/9 = 7 11/12; c) 7 11/12 + 1 3/8 = 9 11/24; d) 4 3/8 + 2 4/11 = 6 61/88; e) 6 5/11 + 5 = 11 5/11; f) 7 3/7 + 5/21 = 7 14/21 = 7 2/3; g) 6 + 4 2/7 = 10 2/7; h) 3/7 + 3 4/5 = 3 47/35 = 4 12/35.