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c)(7/3-4/3)-12/3
d)4/3-(9/11+2/11)

Răspuns :

Coco0987
c) ( 7/3 - 4/3 ) - 12/3= (7-4)/3 -12/3= 3/3 -12/3 = (3-12)/3 = - 9/3 =-3
d) 4/3 - (9/11 + 2/11) = 4/3 - ( 9+2)/11= 4/3 - 11/11= 4/3 - 1 = 4/3 - 3/3= 1/3

DeșteptulOrășan
c) ( 7 / 3 - 4 / 3 ) - 12 / 3 = 3 / 3 - 12 / 3 = - 9 / 3 = - 3
d) 4 / 3 - ( 9 / 11 + 2 / 11 ) = 4 / 3 - 11 / 11 = 44 / 33 - 33 / 33 = 11 / 33 = 1 / 3