what is -2*1/3 in fractions not decimals
$${\mathtt{\,-\,}}{\frac{{\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{1}}}{{\mathtt{3}}}} = {\mathtt{\,-\,}}{\frac{{\mathtt{2}}}{{\mathtt{3}}}} = -{\mathtt{0.666\: \!666\: \!666\: \!666\: \!666\: \!7}}$$
So 2/3