Ответ:

8,16

Объяснение:

((3 1/3 +2,5) : (2,5-1 1/3)) * ((4, 6 - 2 1/3) :(4, 6 + 2 1/3)) * 5,2=8,16

10/3 + 2/5 = 56/15

25/10 - 4/3 = 7/6

46/10 - 7/3 = 34/15

46/10 + 7/3 = 104/15

56/15 * 6/7 = 24/5

34/15 * 15/104 = 17/52

24/5 * 17/52 = 102/65

102/65 * 52/10 = 8,16