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oblicz: [1 1/12- 2 2/3 - (-2 1/2)] : [5/6+ (-1 3/4)]​

Oblicz 1 112 2 23 2 12 56 1 34 class=

Odpowiedź :

Odpowiedź:

IV.

[1 1/12- 2 2/3 - (-2 1/2)] : [5/6+ (-1 3/4)]​ =

= { 13/12-8/3-(-5/2) } : (5/6+(-7/4) } =

= { 13/12-32/12-(-30/12) } : {5/6-7/4} =

= (13/12-32/12+30/12) : (10/12-21/12) =

= 11/12: (-11/12)= 11/12* (-12/11)= -1