29\75+5\12-4\75
29\75+5\12-4\75 = 25/75 + 5/12 = 1/3 + 5/12 = 4/12 + 5/12 = 9/12 = 3/4 = 0,75
29/75-4/75+5/12=25/75+5/12=4/12+5/12=9/12=0.75