Oblicz: -6 i 2/5- 4 i 7/10=
-8 i 1/6+2 i 2/3=
4 i 3/4- 1 i 7/8=
4 i 4/9+(-1 i 5/6)=
4 i 4/9 * (-3 i 3/8)=
(-8 i 2/3):(-1 i 4/9)=
-6 i 1/2-2 i 2/3:(-2/9)=
-5 i 5/9:(5 i 5/6-10)=
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