1 число: х
2 число: (3 1/2)х
3 число: (1 1/2)х
х + (3 1/2)х + (1 1/2)х = 22 1/2
6х = 22 1/2
х = 22 1/2 ÷ 6 = 45/2 × 1/6 = 15/4
▪х = 3 целых 3/4 = 3,75 (1 число)
▪3 1/2 × 3 3/4 = 7/2 × 15/4 = 105/8 = 13 целых 1/8 = 13,125 (2 число)
▪1 1/2 × 3 3/4 = 3/2 × 15/4 = 45/8 = 5 целых 5/8 = 5,625 (3 число)