1/4-y/3>1/3-y
1/4-y/3>1/3-y

1/4-y/3 - 1/3 + y > 03/12 - 4/12 - y/3 + 3y/3 > 0-1/12 + 2y/3 > 0 2y/3 > 1/12y/3 > 1/24y > 3/24y>1/8