Odpowiedź:
3 6/7 + 1 3/7 = 4 9/7 = 5 2/7
5 5/8+2 3/8=7 8/8=8
5 4/9 + 7 7/9 = 12 11/9 = 13 2/9
1 3/4+ 2 1/4+3 3/4=6 7/4=7 3/4
2 5/8+7 3/8+2 3/8=8 11/8=9 3/8
8 7/10+4 3/10+5/10=12 15/10=13 5/10 = 13 1/2
5/11+3 8/11+4 10/11=7 23/11=9 2/11
