Odpowiedź:
Zad. 24
A) 3/6 +2/6 = 5/6
B) 1 5/8 + 2 3/8 = 4
C) 6 - 2/7 = 5 5/7
D) 1/4 - 1/8 = 2/8 - 1/8 = 1/8
E) 6 1\2 - 1 1/4 = 6 2/4 - 1 1/4 = 5 1/4
F) 5 - 3 3/7 = 1 4/7
Zad. 25
A) 1/6 + 2/5 = 5/30 + 12/30 = 17/30
B) 8/9 - 5/6 = 16/18 - 15/18 = 1/18
C) 1 1/5 + 8 1/7 = 1 7/35 + 8 5/35 = 9 12/35
D) 4 7/10 - 2 1/3 = 4 21/30 - 2 10/30 = 2 11/30
E) 4 1/5 - 7/10 = 4 2/10 - 7/10 = 3 5/10 = 3 1/2
F) 6 1/8 - 2 3/4 = 6 1/8 - 2 6/8 = 3 3/8
G) 10 2/3 - 6 7/9 = 10 6/9 - 6 7/9 = 3 8/9
H) 9 3/8 - 2 5/6 = 9 9/24 - 2 20/24 = 6 13/24
