Odpowiedź:
(1 7/12-3 2/15):|-1,1|=(1 35/60-3 8/60):|-11/10|=
=(1 35/60-2 68/60)•(10/11)=(-1 33/60)•(10/11)=
=(-1 11/20)•(10/11)=(-31/20)•(10/11)=-31/22=-1 9/22
-1 9/22+2=13/22
odp. B
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Odpowiedź:
(1 7/12-3 2/15):|-1,1|=(1 35/60-3 8/60):|-11/10|=
=(1 35/60-2 68/60)•(10/11)=(-1 33/60)•(10/11)=
=(-1 11/20)•(10/11)=(-31/20)•(10/11)=-31/22=-1 9/22
-1 9/22+2=13/22
odp. B