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a). (-100) × 8/25 = -800/25 = -32
b). 1 i 2/3 × (-6/25) = -30/75 = -4/10 = -0,4
c). (-2 i 2/5) × (-3 i 3/4) = 180/20= 9
d). (-9,45) × 0,28 = -2,646
e). 0,04 × (-0,27) = -0,0108
f).(-3,6) × 4/9 = -144/90= -1 i 54/90 = -1 i 3/5 = -1,6
g). (-2,1) × (-4 i 2/7) = 630/70 = 9
h). -7/8 : (-5,6) = 0,25
i). 9/10 : (-3/4) = 1,2
j). (-1 i 1/2) : (-0,06) = -1,5 : -0,06 = -25
k). (-2 i 2/3) : 1,2 = -80/36 = -2 i 8/36 = -2 i 2/9
l). 2/3 : (-6) = 2/18 = 1/9
m). (-0,45) : 1 i 4/5 = -0,25
n). (-2,75) : (-2,2) =1,25
o). (-3,5) : (-1 i 2/5) =175/70 = 2,5