Question

(4,5-1 2/3-6,75)*64/27
помогите пожалуйста

Answer 1

(4,5 - 1 2/3 - 6,75) • 64/27 =
= (4 1/2 - 1 2/3 - 6 3/4) • 64/27 =
= (4 6/12 - 1 8/12 - 6 9/12) • 64/27 =
= -(-2 10/12 + 6 9/12) • 64/27 =
= -3 11/12 • 64/27 =
= 47/12 • 64/27 =
= = 47•32/(3•27) = 1504/81 = 18 46/81
=