Oblicz
a) 1 1/3 + 3 2/3
b) 4 2/3 + 7 4/5
c) 4 1/3 - 2 2/3
d) 6 3/5 - 8 4/5
e) - 3 2/7 + 7 6/7
f) - 9 4/9 - 5 7/9
g) 1 1/2 +1/3
h ) 2 2/3 + 1/2
i) 3 1/2 - 1/4
j) 1 1/4- 1/2
k) 2 3/4 - 3 1/2
l) 5 1/4 - 4 2/3
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b) 4 2/3 + 7 4/5= 4 10/15 + 7 12/15 = 11 22/15= 12 7/15
c) 4 1/3 - 2 2/3 = 2 1/3
d) 6 3/5 - 8 4/5 = -3 4/5
e) - 3 2/7 + 7 6/7 = 5 1/7
f) ?
g) 1 1/2 + 1/3 = 1 3/6 + 2/6 = 1 5/6
h) 2 2/3 + 1/2 = 2 4/6 + 3/6= 3 1/6
i) 3 1/2 - 1/4 = 3 2/4 - 1/4 = 3 1/4
j) 1 1/4 - 1/2 = 1 1/4 - 2/4 = 3/4
k) 2 3/4 - 3 1/2 = 2 3/4 - 3 2/4 = -1 1/4
l) 5 1/4 - 4 2/3 = 5 3/12 - 4 8/12 = 5/12
b) 4 2/3 + 7 4/5=4 10/15+7 12/15=17 22/15=18 7/15
c) 4 1/3 - 2 2/3=3 4/3-2 2/3=1 2/3
d) 6 3/5 - 8 4/5=-2 1/5
e) - 3 2/7 + 7 6/7=4 4/7
f) - 9 4/9 - 5 7/9-14 11/9=-12 2/9
g) 1 1/2 +1/3=1 3/6+2/6=1 5/6
h ) 2 2/3 + 1/2=2 4/6+3/6=2 7/6=3 1/6
i) 3 1/2 - 1/4=3 2/4-1/4=3 1/4
j) 1 1/4- 1/2=1 1/4-2/4=3/4
k) 2 3/4 - 3 1/2
l) 5 1/4 - 4 2/3