Question

помогите пж срочнооо

Answer 1

Пошаговое объяснение:

159/25-83/15=62/75

62/75×25/16=31/40

Answer 2

(6 9/25 - 5 8/15) : (4/5)² = (6 27/75 - 5 40/75) : 16/25 = (477/75 - 415/75) :  16/25 = 62/75 : 16/25 = 62/75 × 25/16 = 31/3 × 1/8 = 31/24 = 1 7/24