1) х + 2 3/13 = 10 8/39
х = 10 8/39 - 2 3/13
х = 10 8/39 - 2 9/39
х = 9 47/39 - 2 9/39
х = 7 38/39
2) у + 8 7/12 = 10 5/24
у = 10 5/24 - 8 7/12
у = 10 5/24 - 8 14/24
у = 9 29/24 - 8 14/24
у = 1 15/24
у = 1 5/8
3) х + 14 2/9 = 38 1/18
х = 38 1/18 - 14 2/9
х = 38 1/18 - 14 4/18
х = 37 19/18 - 14 4/18
х = 23 15/18
х = 23 5/6
4) у + 3 7/11 = 9 3/22
у = 9 3/22 - 3 7/11
у = 9 3/22 - 3 14/22
у = 8 25/22 - 3 14/22
у = 5 11/22
у = 5 1/2