Odpowiedź:
1
a 3/9 - 6/18
2/7 - 8/28
b 1 5/7 - 1 25/35
2 5/13 - 2 15/39
c 25/45 - 5/9
16/40 - 2/5
d 4 24/40 - 4 3/5
5 30/48 - 5 5/8
2
a 13/8 - 1 5/8
19/2 - 9 1/2
b 27/7 - 3 6/7
43/12 - 3 7/12
c 55/13 - 4 3/13
65/24 - 2 17/24
d 137/10 - 13 7/10
204/75 - 2 54/75
