Question

(34 - 56) * 3 + (34 + 56) * 4

Answer 1

(34 - 56) * 3 + (34 + 56) * 4 = 2,3

Answer 2

(34 - 56) * 3 + (34 + 56) * 4 =  6 1/12

34 - 56 = 18/24 - 20/24 = - 2/24 = -1/12        -1/12*3= -3/12= - 1/4

34+56 = 38/24 = 19/12    19/12*4= 19/3

-1/4 + 19/3 = -3/12 + 76/12 = 73/12 = 6 1/12