7целых5/18 - 3целых2/27 - 11/54 = 7 + 5/18 - 3 - 2/27 - 11/54= 4 + 5/18 - 2/27 - 11/54= 4 + 15/54 - 4/54 - 11/54= 4 + (15 - 4 - 11)/54= 4 + 0/54= 4
8целых7/12 - 4целых5/18 - 1целая1/4 = 8 + 7/12 - 4 - 5/18 - 1 - 1/4= 4 + 7/12 - 5/18 - 1/4= 4 + 21/36 - 10/36 - 9/36= 4 + (21 - 10 - 9)/36= 4 + 2/36= 4 + 1/18= 4целых1/18
9целых3/20 - 2целых3/25 - 4целых = 9 + 3/20 - 2 - 3/25 - 4= 7 + 3/20 - 3/25= 7 + 15/100 - 12/100= 7 + (15 - 12)/100= 7 + 3/100= 7целых3/100
5целых11/42 - 2целых3/14 - 1целая1/21 = 5 + 11/42 - 2 - 3/14 - 1 - 1/21= 3 + 11/42 - 3/14 - 1/21= 3 + 33/126 - 18/126 - 6/126= 3 + (33 - 18 - 6)/126= 3 + 9/126= 3целых9/126
7целых5/18 - 3целых2/27 - 11/54 = 7 + 5/18 - 3 - 2/27 - 11/54
= 4 + 5/18 - 2/27 - 11/54
= 4 + 15/54 - 4/54 - 11/54
= 4 + (15 - 4 - 11)/54
= 4 + 0/54
= 4
8целых7/12 - 4целых5/18 - 1целая1/4 = 8 + 7/12 - 4 - 5/18 - 1 - 1/4
= 4 + 7/12 - 5/18 - 1/4
= 4 + 21/36 - 10/36 - 9/36
= 4 + (21 - 10 - 9)/36
= 4 + 2/36
= 4 + 1/18
= 4целых1/18
9целых3/20 - 2целых3/25 - 4целых = 9 + 3/20 - 2 - 3/25 - 4
= 7 + 3/20 - 3/25
= 7 + 15/100 - 12/100
= 7 + (15 - 12)/100
= 7 + 3/100
= 7целых3/100
5целых11/42 - 2целых3/14 - 1целая1/21 = 5 + 11/42 - 2 - 3/14 - 1 - 1/21
= 3 + 11/42 - 3/14 - 1/21
= 3 + 33/126 - 18/126 - 6/126
= 3 + (33 - 18 - 6)/126
= 3 + 9/126
= 3целых9/126