a)4/7 + 2/7 =
b)7/11 + 4/11 =
c)9\12 + 5/12 =
d)13/16 - 9/16 =
e)13 i 7/15 + 2 i 2/15 =
f)2 3/4+ 5 3/4 =
g)4 i 3/8 + 2 i 5/8 =
h)1 i 5/9 + 3 5/9 =
i)5 11/15 - 3 i 2/15=
j)4 - 2 i 3/7 =
k)2 i 5/11 7/11 =
l)6 1/9 - 5 i 4/9 =
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a) 6/7
b) 11/11 = 1
c) 14/12 = 1 i 2/12 = 1 i 1/6
d) 4/16 = 1/4
e) 15 i 9/15
f) 7 i 6/4 = 8 i 2/4
g) 6 i 8/8 = 7
h) 4 i 10/9 = 5 i 1/9
i) 2 i 9/15
j) 1 i 4/7
k) nie postawilas/es znaku
l) 6/9
a)4/7+2/7=6/7
b)7/11+4/11=11/11=1
c)9/12+5/12=14/12=1 2/12=1 1/6
d)13/16-9/16=4/16=1/4
e)13 7/15+2 2/15=15 9/15=15 3/5
f)2 3/4+5 3/4=7 6/4=8 2/4=8 1/2
g)4 3/8+2 5/8=6 8/8=7
h)1 5/9+3 5/9=4 10/9=5 1/9
i)5 11/15-3 2/15=2 9/15=2 3/5
j)4-2 3/7=1 4/7
k)2 5/11-7/11=1 16/11-7/11=1 9/11
l)6 1/9-5 4/9=5 10/9-5 4/9=6/9=2/3