2целых 1/6-(х+1цел1/12)=0,25

26/12-10/12-13/12=3/12 26-10-13=3

x+1 1/12=2 1/6-1/4x+1 1/12=2 2/12-3/12x=1 1/12=1 14/12-3/12x+1 1/12=1 11/12x=1 11/12-1 1/12x=10/12x=5/6