3.5/8+ ? =4 3.5/11 + ? =8 3,1/5+2,2/5+ ? =9

3.5/8 + 3/8 = 4 3.5/11 + 4.6/11 = 8 3.1/5 + 2.2/5 + 3.2/5 = 9

3 5/8 + 3/8  = 4 3 5/11 + 4 6/11 = 8 3 1/5 + 2 2/5 = 5 3/5      5 3/5 + 3 2/5 = 9       w pierwszym ma być : 3/8 w drugim : 4 6/11 w trzecim : 3 2/5