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b) 1 5/6- 3 1/3=11/6-10/3= -3/2= -1 1/2
c) 4,3 - 7,5= -3,2
d) -4,5 - 2 1/4= -45/10-9/4= -9/2-9/4= -27/4= -6 3/4
e) -3 1/6 - (-5 5/6) = -19/6-(-35/6)= -19/6+35/6=8/3=2 2/3
f) 7 1/3+(-4 5/6) =22/3+(-29/6)=22/3-29/6=5/2=2 1/2
g) -5 4/7+7= -39/7+7=10/7=1 3/7
h) 1,23- 9= -7,77
i ) -6- (-4 5/9)= -6-(-41/9)= -6+41/9= -13/9= -1 4/9