a) 4,3 - 7,5 =
b) -4,5 - 2 i 1/4 =
c) -3 i 1/6 - (-5 i 5/6) =
d) 7 i 1/3 + (-4 i 5/6) =
e) -5 i 4/7 + 7 =
f) 1,23 -9 =
g) -6 - (-4 i 5/9) =
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a) 4,3 - 7,5 = -3,2
b) -4,5 - 2 i 1/4 =-4,5-2,25= -6,75
c) -3 i 1/6 - (-5 i 5/6) =19/6-(-35/6)=-16/6=-2 4/6
d) 7 i 1/3 + (-4 i 5/6) =22/3+(-29/6)=44/6 +(-29/6)=15/6=2 3/6
e) -5 i 4/7 + 7 =2 4/7
f) 1,23 -9 = -7,77
g) -6 - (-4 i 5/9) = -1 4/9