Выполните действия (6 5/8-1/2)-(5 3/4-2 1/6)+(9 5/8-7 1/3)
(6 5/8-1/2)-(5 3/4-2 1/6)+(9 5/8-7 1/3)=( 6 5/8-4/8)-( 5 18/24-2 4/24)+(9 15/24-7 8/24)=6 1/8- 3 14/24+ 2 7/24=6 3/24- 1 7/24=4 20/24= 4 5/6