A 1/7+ 5/14= 2/14+5/14=7/14
B 3/4+5/12=9/12+5/12=14/12=1 i 2/12
C 8/9 - 5/18= 16/18- 5/18=11/18
D 1/3+3/4= 4/12+9/12=13/12= 1 i 1/12
E 3/5- 1/2 = 6/10 - 5/10 =1/10
F 1 i 1/2-1/3= 3/2-1/3=9/6- 2/6 = 7/6= 1 i 1/6
G 1 i 1/2+ 3/8 = 3/2 +3/8=12/8+3/8=15/8 =1 i 7/8
H 1 i 1/3 - 2/9= 4/3-2/9= 12/9-2/9= 10/9
I) 2 i 3/5-7/10= 13/5 - 7/10 = 26/10-7/10 =19/10= 1 i 9/10
J 5/6-1/4= 10/12 - 3/12=7/12
K 1 i 1/6- 7/9 =7/6-7/9=21/18- 14/18 = 7/18
L 2 i 3/8 - 1 i 5/6 =19/8 - 11/6 = 57/24- 44/24 = 13/ 24
Zadanie 3 za chwilę napisze
