What is 5/6 - 2/9 ?
$${\frac{{\mathtt{5}}}{{\mathtt{6}}}}{\mathtt{\,-\,}}{\frac{{\mathtt{2}}}{{\mathtt{9}}}} = {\frac{{\mathtt{11}}}{{\mathtt{18}}}} = {\mathtt{0.611\: \!111\: \!111\: \!111\: \!111\: \!1}}$$