Выполните действие:
340/567 + 29/42 + 43/54 + 74/81 - ( 53/60 - 37/84 ) - ( 3/14 + 12/35 )

340/567 + 29/42 + 43/54 + 74/81 - ( 53/60 - 37/84 ) - ( 3/14 + 12/35 ) = 340/567 + 29/42 + 43/54 + 74/81 - (93/210 )- ( 39/70 )= 340/567 +29/42+43/54 + 74/81-93/210 -39/70 = 680+783+ 903+1036/1134 -93/210-39/70 = 3 -93/210-39/70 = 630-93-117 /210= 420/210 = 2