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a) ( -100 ¾ ) + ( - 10,6 ) =
b) ( - 4,6 ) - ¼ * 2 ½ =
c) ( - 2 ½ ) + ( - 3 ⁴/₆ ) =
d) 3 ⅕ + ( - 2 ½ ) : 4 =
e) ( - ½ - ¼ ) * ( - ¹/₃ - ¹/₅ ) =
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a) =(-100 3/4)-10 3/5=-100 15/20-10 12/20=5 3/20
b)=-4,6-0,25x2.5=-4,6-0,625=-5,225
c)=-2 3/6 - 3 4/6=-5 7/6=-6 1/6
d)= 3 1/5 -5/2 :4=3 1/5 - 5/8=3 8/40 - 25/40=128/40 - 25/40= 103/40=2 23/40
e)=(-2/4 - 1/4)x (-5/15 - 3/15)=-3/4x (-8/15)= 24/60=12/30= 6/15