Poziom A
a) 3 i 1/2 - 3/8 = 3 i 4/8-3/8=3 i 1/8
b) 5 i 5/6 - 1 i 1/2 = 5 i 5/6 - 1 i 3/6 = 4 i 2/6
c) 2 i 3/4 - 1 i 2/5 = 2 i 15/20 - 1 i 8/20 = 1 i 7/20
d) 4 i 1/3 - 2 i 1/4 = 4 i 4/12 - 2 i 3/12 =2 i /12
e) 4/5-3/10= 8/10 - 3/10 = 5/10
f) 3 i 2/3 - 1 i 3/5 = 3 i 10/15 - 1 i 9/15 = 2 i 1/15
g) 6 i 7/8- 3 i 2/3 = 6 i 21/24 - 3 i 16/24 = 3 i 5/24
h) 4 i 3/5 - 1 i 1/6 = 4 i 18/30 - 1 i 5/30 = 1 i 13/30
i) 2 i 5/9 - 1/3 = 2 i 5/9 - 3/9 = 2 i 2/9
Poziom B
a) 3 i 1/6 - 1 i 5/6 = 1 i 2/6
b) 4 i 1/3 - 1 i 2/3 = 2 i 2/3
c) 12 i 2/9 - 7/9 =11 i 4/9
d) 5 i 3/7 - 2 i 4/7 = 2 i 6/7
e) 6 i 2/5 - 5 i 4/5 = 3/5
f) 2 i 7/12 - 11/12=1 i 8/12
g) 1 i 9/20 - 19/20 = 10/20
h) 13 i 3/8 - 8 i 5/8 = 4 i 6/8
i) 5 i 7/10 - 3 i 9/10 = 1 i 8/10
wszystko powinno być dobrze pozdro
