Wykonaj odejmowanie i sprawdzenie ułamki 1-7/8 , 1-20/30 , 1-4/7 , 1-3/4 , 1-7/10 , 1-6/11 , 1-5/12 , 1-17/33 Daje naj!!

1 - 7/8 = 1/8 spr: 1/8 + 7/8 = 8/8 = 1 1 - 20/30 = 10/30 spr: 10/30 + 20/30 = 30/30 = 1 1 - 4/7 = 3/7 spr: 3/7 + 4/7 = 7/7 = 1 1 - 3/4 = 1/4 spr: 1/4 + 3/4 = 4/4 = 1 1 - 7/10 = 3/10 spr: 3/10 + 7/10 = 10/10 = 1 1 - 6/11 = 5/11 spr: 5/11 + 6/11 = 11/11 = 1 1 - 5/12 = 7/12 spr: 7/12 + 5/12 = 12/12 = 1 1 - 17/33 = 16/33 spr: 16/33 + 17/33 = 33/33 = 1 Nie ma za co, na 100% dobrze :)