Выполните сложение 3 5/9+1 1/9, 4 3/10+6 1/10, 3/4+ 1 1/4, 1/4+ 3 1/6, 5 2/15+3 2/9

3 5/9 + 1 1/9 = 32/9 + 10/9 = 42/9 = 14/3 = 4 2/3;

4 3/10 + 6 1/10 = 43/10 + 61/10 = 104/10 = 52/5 = 10 2/5;  

3/4 + 1 1/4 = 3/4 + 5/4 = 8/4 = 2;

1/4 + 3 1/6 = 1/4 + 19/6 = 3/12 + 38/12 = 41/12 = 3 5/12;

5 2/15 + 3 2/9 = 77/15 + 29/9 = 231/45 + 145/45 = 376/45 = 8 16/45.