Oblicz;
18/9 x (-9/12)=
91/4 ; (-2 1/6)=
5,3+ 3 1/4
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91/4 ; (-2 1/6)= 91/4 : -13/6 (podzielić=pomnożyć przez odwrotność)= 91/4 x -6/13= -21/2 = -10 1/2
5,3+ 3 1/4= 5,3+3,25= 8,55