Выполни действия 70616+19796+217•3 , 56380+325478+130•6+714: 7

217*3=651 70616+19796+651=91063 130*6=780 714/7=102 56380+325478+780+102=382740

А) 2 целых 2/11•(1/3x+1/15)=2,4 1/3x+1/15=24/10 *11/24 1/3x+1/15=11/10 1/3x=11/10 - 1/15 1/3x = 33/30 - 2/30 1/3x = 31/30 x=31/30 * 3/1 x=31/10 x=3,1 б) 3 целых 1/2: (1/6x+5/8)=2целых 1/3 1/6x + 5/8 = 3 1/2 : 2 1/3 1/6x + 5/8 = 7/2 * 3/7 1/6x + 5/8 = 3/2 1/6x = 3/2 - 5/8 1/6x = 12/8 - 5/8 1/6x = 7/8 x = 7/8 * 6/1 x = 21/4 x = 5,25 в) 3 целых 3/8: (1 целая 1/14x+5/7)=2 целых 1/10 1 1/14x + 5/7 = 3 3/8 : 2 1/10 1 1/14x + 5/7 = 27/8 * 10/21 1 1/14x + 5/7 = 45/28 1 1/14x = 45/28 - 5/7 1 1/14x = 45/28 - 20/28 1 1/14x = 25/28 x = 25/28 : 1 1/14 x = 25/28 * 14/15 x = 5/6 г) 45•(2 целых 7/9x+1целая2/15x+1целая2/15x)=176 45*(25/9x + 17/15x + 17/15x)=176 125x + 51x + 51x = 176 227x = 176 x = 176: 227 x = 176/227 д) (4целых 2/7y -1 целая 1/6)•84=82 (30/7y - 7/6)*84 = 82 360y - 98 = 82 360y = 82+98 360y = 180 y = 180: 360   y=0,5