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b)1 5/6-3 1/3= 1 5/6 - 3 2/6= 2 3/6
c) 4,3 - 7,5= -3,2
d)-4,5 - 1/4= -4,5 - 0,25= -4,75
e)-3 1/6-(-5 5/6)= - 3 1/6+5 5/6= 8 6/6 = 9
f) 7 1/3+(-4 5/6)= 7 2/6+ (-4 5/6)= 2 1/2
g)-5 4/7+7= 1 3/7
h)1,23-9= 7,77
i) -6-(-4 5/9)= -6+4 5/9= -1 4/9
Myślę, że pomogłam. Liczę na naj. :)