1) 59 25/64 - (32 3/16 + 4 1/64) =

32 3/16 + 4 1/64 = 515/16 + 257/64 = 2060/64 + 257/64 = 2317/64 =

36 13/64

59 25/64 - 36 13/64 = 3801/64 - 2317/64 = 1484/64 = 371/16 = 23 3/16

Ответ 23 3/16

2) 32 2/45 + (20 5/9 - 18 4/5) =

20 5/9 - 18 4/5 = 185/9 - 94/5 =

925/45 - 846/45 = 79/45 = 1 34/45

32 2/45 + 1 34/45 = 1442/45 + 79/45 = 1521/45 = 169/5 = 33 4/5

Ответ : 33 ⅘

3)37 29/36 - (4 5/18 + 1 31/48) =

4 5/18 + 1 31/48 = 77/18 + 79/48 = 616/144 + 237/144 = 853/144 =

5 133/144

37 29/36 - 5 133/144 = 1361/36 - 853/144 = 5444/144 - 853/144 = 4591/144 = 31 127/144

Ответ : 31 ¹²⁷/144

4)(40 61/80 - 7 17/20) + 25 3/40 =

40 61/80 - 7 17/20 = 3261/80 - 157/20 = 3261/80 - 628/80 = 2633/80 = 32 73/80

32 73/80 + 25 3/40 = 2633/80 + 1003/40 = 2633/80 + 2006/80 = 4639/80 = 57 79/80

Ответ : 57 ⁷⁹/80

Если честно - не знаю верно или нет,не перепроверял