4/7(49/36)-8/9

$${\frac{{\mathtt{4}}}{{\mathtt{7}}}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{49}}}{{\mathtt{36}}}}\right){\mathtt{\,-\,}}{\frac{{\mathtt{8}}}{{\mathtt{9}}}} = -{\mathtt{0.111\: \!111\: \!111\: \!111\: \!111\: \!1}}$$