(¹⁰ 3/4-12:¹1/5) × 4/9+²1/6+³1/4:⁵1/5=

Пошаговое объяснение:

1) 12 : 1 1/5 = 12 : 6/5 = 12 * 5/6 = 10

2) 10 3/4 - 10 = 3/4

3) 3/4 * 4/9 = 3/9 = 1/3

4) 1/3 + 2 1/6 = 2/6 + 2 1/6 = 2 3/6 = 2 1/2

5) 3 1/4 : 5 1/5 = 13/4 : 16/5 = 13/4 * 5/16 = 65/64 = 1 1/64

6) 2 1/2 + 1 1/64 = 2 32/64 + 1 1/64 = 3 33/64