y • 4 3/4 = 3 5/8 - 2 5/6


Пожалуйста

у * 4 3/4 = 3 5/8 - 2 5/6у * 19/4 = 3 15/24 - 2 20/24у * 19/4 = 2 39/24 - 2 20/24у * 19/4 = 19/24у = 19/24 : 19/4у = 19/24 * 4/19у = 4/24у = 1/6Пояснения:4 целых 3/4 = (4*4+3)/4 = 19/45/8 = 15/24 - доп.множ. 35/6 = 20/24 - доп.множ. 44/24 = 1/6 - сократили на 4

y * 4 3/4 = 3 5/8 - 2 5/6y * 19/4 = 29/8 - 17/619/4y = 19/24y = 1/6