Odpowiedź:
2.
a) 3/4 = 24/32
b) 4/9 = 24/54
c) 1/2 = 24/48
3.
a) 15/23 > 2/213
b) 21/24 > 21/31
c) 2 3/7 > 1 3/9
4.
a) 27/5 = 5 2/5
b) 32/7 = 4 4/7
c) 16/13 = 1 3/13
5.
a) 1 2/5 = 7/5
b) 4 1/3 = 13/3
c) 7 3/4 = 31/4
6.
a) 4/7 + 5/7 = 9/7 = 1 2/7
b) 2 1/8 + 3/8 = 2 4/8 = 2 1/2
c) 6 7/12 + 1 5/12 = 7 12/12 = 8
d) 19/25 - 14/25 = 5/25 = 1/5
e) 8 26/27 - 6 9/27 = 2 17/27
f) 3 - 2/5 = 2 5/5 - 2/5 = 2 3/5
g) 7 4/9 - 2 5/9 = 6 13/9 - 2 5/9 = 4 8/9
Szczegółowe wyjaśnienie:
