Вычислите: 4 1/6*(1 1/2-3/5)+(3/4+5/6)*6

4 1/6 x ( 1 1/2 - 3/5) + (3/4 + 5/6) x 6 = 12. 1) 1 1/2 - 3/5 = 3/2 - 3/5 = 15/10 - 9/10 = 6/10. 2) 4 1/6 x 6/10 = 25/6 x 6/10 = 2 1/2. 3) 3/4 + 5/6 = 9/12 + 10/12 = 19/12. 4) 19/12 x 6 = 19/2 = 9 1/2. 5) 2 1/2 + 9 1/2 = 12.