Matematyka 6 proszę o jak najszybsze wykonanie zadania

A.3 i 8/7 7 i 8/5 10 17/12 B.9 i 13/10 3 i 23/19 1 i 26/23 C.14/3 18/5 53/8

4 i 1/7 = 3 i 8/7 8 i 3/5 = 7 i 8/5 11 i 5/12 = 10 i 17/12 b 10 i 3/10 = 9 i 13/10 4 i 4/19 = 3 i 23/19 2 i 3/23 = 1 i 26/23 c 4 i 2/3 = 14/3 3 i 3/5 = 18/5 6 i 5/8 = 53/8 d 7 = 7/1 = 28/4 13 = 13/1 = 39/3 15 = 15/1 = 60/4