Odpowiedź :
6/7 - 5/7 = 1/7
11/15 - 3/15 = 8/15
7/9 - 5/9 = 2/9
2 3/5 - 1/5 = 2 i 2/5
5 1/2 - 1/2 = 5
4 7/13 - 2 = 2 i 7/13
5 2/3 - 2 1/3 = 3 i 1/3
7 4/7 - 2 1/7 = 5 i 3/7
6 7/8 - 3 5/8 = 3 i 2/8 = 3 i 1/4
Licze na NAJ
6/7 - 5/7 = 1/7
11/15 - 3/15 = 8/15
7/9 - 5/9 = 2/9
2 3/5 - 1/5 = 2 i 2/5
5 1/2 - 1/2 = 5
4 7/13 - 2 = 2 i 7/13
5 2/3 - 2 1/3 = 3 i 1/3
7 4/7 - 2 1/7 = 5 i 3/7
6 7/8 - 3 5/8 = 3 i 2/8 = 3 i 1/4
Licze na NAJ