Odpowiedź:
a) 6 - 1 3/7 = 4 4/7
b) 10 - 2 3/5 = 7 2/5
c) 8 - 5 5/7 = 2 2/7
d) 4 1/8 - 1 2/8=
3 9/8 - 1 2/8 = 2 7/8
e) 8 7/8 - 6 8/9 = 7 16/9 - 6 8/9 = 1 8/9
f) 8 3/20 - 1 17/20 = 7 23/20 - 1 17/20 = 6 6/20 ( 6 3/10)
g) 6 6/25 - 5 8/25 = 5 31/25 - 5 8/25 = 23/25
h) 13 11/13 - 12 12/13 = 12 24/13 - 12 12/13 = 12/13
i) 25 3/17 - 18 4/17 = 24 20/17 - 18 4/17 = 6 16/17
