Помогите решить, (12 1/3-7 3/4)*6/11 (2 3/5-5/8):119 3/4

Question

Помогите решить, (12 1/3-7 3/4)*6/11 (2 3/5-5/8):119 3/4

Answer 1

(12 1/3 - 7 3/4) * 6/11
(37/3 - 31/4) *6/11 = (148/12 - 93/12) * 6/11 = 55/12 *6/11 = 5/2 = 2 1/2
2) (2 3/5 - 5/8) /119 3/4 = (13/5 - 5/8) /  479/4 = (13/5 - 5/8)  /  479/4 =
(104/40 -25/40)  / 479/4 = (79/40)  /  479/4/  = 79/4790