1 2/6 or 1 1/3 would b ur answer (ther both th same!!)

[latex]4 \frac{1}{6} -2 \frac{5}{6} =3+1 \frac{1}{6} -2 \frac{5}{6} =3-2+ \frac{7}{6} - \frac{5}{6} =1 \frac{2}{6} =1 \frac{1}{3} [/latex]