Zad.7
a) 1 - 7/8 = 1/8
b) 1 - 5/7 = 2/7
c) 2 - 6/7 = 1 1/7
d) 2 - 3/5 = 1 2/5
e) 3 - 5/19 = 2 14/19
f) 3 - 2/11 = 2 9/11
Zad.8
Wyniki:
Pierwsza kolumna: 6/7, 1 6/7, 5 6/7, 9 6/7
Druga kolumna: 1/6, 1 1/6, 4 1/6, 6 1/6
Trzecia kolumna: 8/11, 1 8/11, 3 8/11, 6 8/11
Czwarta kolumna: 4/9, 2 4/9, 9 4/9, 17 4/9
Zad. 9
b) 2 2/5 - 3/5 = 1 7/5 - 3/5 = 1 4/7
c) 6 3/8 - 2 7/8 = 5 11/8 - 2 7/8 = 3 4/8
d) 25 3/10 - 14 9/10 = 24 13/10 - 14 9/10 = 10 4/10
