Найди значение выражения: (5+4)\2; (7\3-4\3): (7-4); (10\2-2\6): 6+1\10;

1) 9/2 = 4.5
2)7/3 - 4/3 = 3/3 = 1
    1/(7-4) = 1/3
3)(5-1/3)/6 + 1/10 = (14/3)/6 + 1/10 = 14/18 + 1/10 = 7/9 + 1/10 = 79/90