(1 2/3+1/3)-(1 3/4+1 3/4)=1 3/3-2 6/4=2-3 2/4=2-3 1/2=-(3 1/2-2)=-1 1/2.
По всем правилам.
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(1 2/3+1/3)-(1 3/4+1 3/4)=1 3/3-2 6/4=2-3 2/4=2-3 1/2=-(3 1/2-2)=-1 1/2.
По всем правилам.