((27.2-54)^2/54)+ ((44.6-54)^2/54)=

Just enter this directly into the site calculator;

$${\frac{{\left({\mathtt{27.2}}{\mathtt{\,-\,}}{\mathtt{54}}\right)}^{{\mathtt{2}}}}{{\mathtt{54}}}}{\mathtt{\,\small\textbf+\,}}{\frac{{\left({\mathtt{44.6}}{\mathtt{\,-\,}}{\mathtt{54}}\right)}^{{\mathtt{2}}}}{{\mathtt{54}}}} = {\mathtt{14.937\: \!037\: \!037\: \!037\: \!037}}$$