1: сделайте сложение:3 целых 1\3+13 целых 1\6+1\34 целых 3\5+27 целых 3\4+1\412

Решим записанные примеры. 

3 1/3 + 13 1/6 + 1/34 = 10/3 + 79/6 + 1/34 = 20/6 + 79/6 + 1/34 = 99/6 + 1/34 = 33/2 + 1/34 = 561/34 + 1/34 = 562/34 = 281/17 = 16 9/17.

3\5 + 27 3\4 + 1\4 = 12/20 + 111/4 + 1/4 = 12/20 + 112/4 = 12/20 + 560/20 = 572/20 = 286/20 = 143/10 = 14 3/10.

12  +2 7\104 = 14 7/104.

 3\7 + 3\7 = 6/7.

3 4\5 + 1 4\5 = 19/5 + 9/5 = 28/5 = 5 3/5.

1 4\9 + 7 7\18 = 13/9 + 133/18 = 26/18 + 133/18 = 159/18 = 8 15/18 = 8 5/6.

8 4\5 + 2 1\3 = 44/5 + 7/3 = 132/15 + 35/15 = 167/15 = 11 2/15.

12 5\6 + 4\15 = 77/6 + 4/15 = 770/60 + 16/60 = 786/60 = 393/30 = 131/10 = 13 1/10.

7\20 + 2 7\10 = 7/20 + 27/10 = 7/20 + 54/20 = 61/20 = 3 1/20.

8 3\7 + 1 9\14 = 59/7 + 23/14 = 118/14 + 23/14 = 141/14 = 10 1/14.