7-2 i 2/5 = 6 i 5/5 - 2i 2/5 = 4 i 3/5
10 - 4/7 = 9 i 7/7 - 4/7 = 9 i 3/7
Nie ma odejmowania
8 i 1/4 - 3i 3/4 = 7 i 5/4 - 3 i 3/4 = 4 i 2/4
9-6/10 = 8 i 10/10 - 6/10 = 8 i 4/10
12 i 1/8 - 2 i 7/8 = 12 i 9/8 - 2 7/8 = 10 i 2/8
5 i 1/3 -2/3 = 5 i 3/3 - 2/3= 5 i 1/3
11 - 5 i 5/11 = 10 i 5/5 - 5 i 5/11 = 5
