Oblicz 1.6 - 1 3/7 2.10 - 2 3/5 3.8 - 5 5/7 4.4 1/8- 1 2/8 5.8 7/9 - 6 8/9 6.6 6/25- 5 8/25 7.13 11/13 - 12 12/13

1. 6 - 1 i 3/7=4 i 4/7 2. 10 - 2 i 3/5= 7 i 2/5 3.8 - 5 i 5/7= 2 i 2/7 4. 4 i 1/8 - 1 i 2/8=3 i 9/8 - 1 i 2/8= 2 i 7/8 5. 8 i 7/9 - 6 i 8/9= 7 i 16/9 - 6 i 8/9= 1 i 8/9 6. 6 i 6/25 - 5 i 8/25= 5 i 31/25 - 5 i 8/25 = 6/25 7. 13 i 11/13 - 12 i 12/13= 12 i 24/13 - 12 i 12/13= 12/13