а) (3 1/8)³ = (25/8)³ = 25³ / 8³ = 15625 / 512 = 30.517578125
б) (1 2/5)³ = (7/5)³ = 7³ / 5³ = 343 / 125 = 2.744
в) (1 3/5)³ = (8/5)³ = 8³ / 5³ = 512 / 125 = 4.096
а) (3 1/8)³ = (25/8)³ = 25³ / 8³ = 15625 / 512 = 30.517578125
б) (1 2/5)³ = (7/5)³ = 7³ / 5³ = 343 / 125 = 2.744
в) (1 3/5)³ = (8/5)³ = 8³ / 5³ = 512 / 125 = 4.096