Question

(1 24/25:1 2/5-5/6)•4 2/7+(28-27 6/7)•53
помогите. пж​

Answer 1

(1 24/25:1 2/5-5/6)•4 2/7+(28-27 6/7)•53=
=(49/25 : 7/5 - 5/6) - 30/7 + 1/7 * 53=
=(7/5 - 5/6) -30/7 + 53/7=
=17/30 + 23/7=
= 809/210= 3 179/210