Сделайте деянья ((2 2\5*(9,5 - 6,85)+ 3 16\25 : 0,91) *

(2 2/5 * (9 , 5 - 6 , 85) + 3 16/25 : 0 , 91) * 3/4 =(2 2/5 * (9 5/10 - 6 85/100) + 3 16/25 : 91/100) * 3/4 = (12/5 * (95/10 - 685/100) + 91/25 : 91/100) * 3/4 = (12/5 * ((95 * 10 - 685)/100) + 91/25 : 91/100) * 3/4 = (12/5 * ((950 - 685)/100) + 91/25 : 91/100) * 3/4 = (12/5 * (265/100) + 91/25 : 91/100) * 3/4 = (12/5 * 53/20 + 91/25 : 91/100) * 3/4 = ((12 * 53)/(5 * 20) + 91/25 * 100/91) * 3/4 = ((12 * 53)/(5 * 20) + 91/25 * 100/91) * 3/4 = ((12 * 53)/(5 * 20) + 91/25 * 100/91) * 3/4 = (636/100 + 100/25) * 3/4 = (636/100 + 4) * 3/4 = (636 + 4 * 100)/100 * 3/4 = 1036/100 * 3/4 = (1036 * 3)/400 = 3108/400 = 1554/200 =777/100 = 7 77/100.