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ева564738
@ева564738
August 2022
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esmiramah
1) -11 2/3+8,6=-11 2/3+8 6/10= -11 2/3+8 4/5= -35/3+44/5=(-175+132)/15=-43/15=-2 13/15
2) -2 13/15-4,5= -2 13/15-4 5/10= -2 13/15-4 1/2=- 43/15-9/2= (-86-135)/30=-221/30=-7 11/30
3) 5 2/5-3 3/40=27/5-123/40=(216-123)/40=93/40=2 13/40
4) 8,12-7,75=1,12-0,75=0,12+0,25=0,37
5) 2 13/40+0,37=2,325+0,37=2,695
6) 2,695:(-2695)=-1
7) -7 11/30:(-1)= 7 11/30
8) 50%=1/2
7 11/30×1/2= 221/30×1/2=221/60=3 41/60
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Answers & Comments
2) -2 13/15-4,5= -2 13/15-4 5/10= -2 13/15-4 1/2=- 43/15-9/2= (-86-135)/30=-221/30=-7 11/30
3) 5 2/5-3 3/40=27/5-123/40=(216-123)/40=93/40=2 13/40
4) 8,12-7,75=1,12-0,75=0,12+0,25=0,37
5) 2 13/40+0,37=2,325+0,37=2,695
6) 2,695:(-2695)=-1
7) -7 11/30:(-1)= 7 11/30
8) 50%=1/2
7 11/30×1/2= 221/30×1/2=221/60=3 41/60