Oblicz pamiętając o kolejności wykonywania działań. 2 1/2+(3 1/2)= 7 3/4-(2 1/4+2 3/4)= (5 3/4+4 2/4)-(3 1/2+2 1/2)= (6 1/4-2 2/4)+(5 2/4-3 3/4)= (4 7/9-3 8/9)-8/9 proszę pomuszcie musze mieć to na jutrooo !!!... błagammm!!!

1/2 + ( 3 1/2 ) = 1/2 + 7/2 = 8/2 = 4 7 3/4 - ( 2 1/4 + 2 3/4 ) = 7 3/4 - 4 4/4 = 6 7/4 - 4 4/4 = 2 3/4 ( 5 3/4 + 4 2/4 ) - ( 3 1/2 + 2 1/2 ) = 9 5/4 - 5 2/2 = 9 5/4 - 5 4/4 = 4 1/4 ( 6 1/4 - 2 2/4 ) + ( 5 2/4 - 3 3/4 ) = ( 5 5/4 - 2 2/4 ) + ( 4 6/4 - 3 3/4 ) = 3 3/4 + 1 3/4 = 4 6/4 = 5 2/4 = 5 1/2 ( 4 7/9 - 3 8/9 ) - 8/9 = ( 3 16/9 - 3 8/9 ) - 8/9 = 8/9 - 8/9 = 0