Zad 4. a).-2 i 1/5 + 3,3 = b). 1 i 5/6 - 3 i 1/3 = c).4,3-7,5 = d). - 4,5 - 2 i 1/4= e). - 3 i 1/6 - ( -5 i 5/6)= f). 7 i 1/3 + ( - 4 5/6) = g). - 5 i 4/7 + 7 = h). 1,23 - 9 = i). - 6 - ( - 4 i 5/9) =
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a) -2 i 1/5 + 3,3= -2,2 +3,3= 1,1
b) 1 i 5/6 - 3 i 1/3= 1 i 5/6 - 3 i 2/6 = - 1 i 3/6
c) 4,3 - 7,5 = - 3,2
d)- 4,5 - 2 i 1/4 =-4,5-2,25 = -6,75
e) -3 i 1/6 - (-5 i 5/6)= - 3 i 1/6 + 5 i 5/6 =2 i 4/6= 2 i 2/3
f) 7 i 1/3 + ( - 4 i 5/6) = 7 i 2/6 - 4 i 5/6 = 2 i 3/6
g) - 5 i 4/7 + 7 =1 3/7
h) 1,23 - 9 = -7,77
i) - 6 - ( - 4 i 5/9) =-6 + 4 i 5/9= -1 4/9
a).-2 i 1/5 + 3,3 = -2,2+3,3 = 1,1
b). 1 i 5/6 - 3 i 1/3 = 11/6 - 10/3 = 11/6-20/6 = -9/6 = -3/2 = -1 i 1/2
c). 4,3-7,5 = -3,2
d). - 4,5 - 2 i 1/4= -4,5-2,25 = -6,75
e). - 3 i 1/6 - ( -5 i 5/6)= -3 i 1/6+ 5 i 5/6 = -19/6 + 35/6 = 16/6 = 8/3 = 2 i 2/3
f). 7 i 1/3 + ( - 4 5/6) = 22/3 - 29/6 = 44/6 - 29/6 = 15/6 = 5/2 = 2 i 1/2
g). - 5 i 4/7 + 7 = -39/7 + 49/7 = 10/7 = 1 i 3/7
h). 1,23 - 9 = - 7,77
i). - 6 - ( - 4 i 5/9) = -6+ 4 i 5/9 = -54/9+41/9 = -13/9 = -1 i 4/9