Odpowiedź:
1 i 4/7 + 2 i 2/7 = 3 i 6/7
2 i 1/7 + 4 i 3/7 = 6 i 4/7
3 i 2/9 + 1 i 5/9 = 4 i 7/9
5 i 4/9 + 2 i 3/9 = 7 i 7/9
1 i 1/5 + 6 i 3/5 = 7 i 4/5
8 i 5/7 + 2 i 1/7 = 10 i 6/7
2 i 2/5 + 5 i 1/5 = 7 i 3/5
3 i 4/9 + 4 i 1/9 = 7 i 5/9
SYMFONIA
zad 4
2 i 6/7 + 4 i 3/7 = 6 i 9/7 = 7 i 2/7
5 i 3/4 + 3 i 3/4 = 8 i 6/4 = 9 i 2/4 = 9 i 1/2
2 i 1/7 + 4 i 3/7 = 6 i 4/7
1 i 3/11 + 7 i 10/11 = 8 i 13/11 = 9 i 2/11
