-11(3/2)(.12(-12))=
$$\\-11(3/2)(0.12(-12))\\ =-11(3/2)(-1.44)\\ =+11(3/2)(1.44)$$
$${\mathtt{11}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{3}}}{{\mathtt{2}}}}\right){\mathtt{\,\times\,}}{\mathtt{1.44}} = {\frac{{\mathtt{594}}}{{\mathtt{25}}}} = {\mathtt{23.76}}$$