СРОЧНО!!!Помогите решить заранее спасибо. Пример 3 4/9 + 5 7/9 Образец 3 4/9 +5 7/9 = 8 11/9 =8 +11/9=8+1 2/9=9 2/9 1)6

1) 6 4/9 + 3 5/9 = 9 9/9 = 9 + 9/9 = 9 + 1 = 10 ;2) 10 11/19 + 5 14/19 = 15 25/9 = 15 + 25/9 = 15 + 2 7/9 = 17 7/9 ;3) 2 3/13 + 2 11/13 = 4 14/13 = 4 + 14/13 = 4 + 1 1/13 = 5 1/13 ;4) 1 5/8 + 3 7/8 = 4 12/8 = 4 + 12/8 = 4 + 1 4/8 = 4 + 1 1/2 = 5 1/2.