Odpowiedź :
Zad.2
B)5/7+6/7=11/7=1,4/7
C)2,2/5+4/5=2,6/5=3,1/5
Zad.3
A)W luki 8/12+3/12=11/12
B)25/45+27/45=52/45=1,7/45
C)10/15+12/15=22/15=1,7/15
D)35/56+24/56=59/56=1,3/56
E)W luce1,4/8+2,3/8=3,7/8
F)6/27+1,7/24=1,13/27
G)1,45/54+3,6/54=4,51/54
H)2,15/150+1,70/150=3,85/150=3,17/30
Chyba wszystko dobrze<3
b) 11/7 = 1 i 4/7
c) 2 i 6/5 = 3 i 1/5
Zad. 3
a) 8/12 + 3/12 = 11/12
b) 25/45 + 27/45 = 1 7/45
c) 10/15 + 12/15 = 1 7/15
d) 35/56 + 24/56 = 1 3/56
e) 1 4/8 + 2 3/8 = 3 7/8
f) 6/27 + 1 7/27 = 1 13/27
g) 1 15/18 + 3 2/18 = 4 17/18
h) 2 3/30 + 1 14/30 = 3 17/30
c) 2 i 6/5 = 3 i 1/5
Zad. 3
a) 8/12 + 3/12 = 11/12
b) 25/45 + 27/45 = 1 7/45
c) 10/15 + 12/15 = 1 7/15
d) 35/56 + 24/56 = 1 3/56
e) 1 4/8 + 2 3/8 = 3 7/8
f) 6/27 + 1 7/27 = 1 13/27
g) 1 15/18 + 3 2/18 = 4 17/18
h) 2 3/30 + 1 14/30 = 3 17/30