+118723 $${\frac{{\frac{{\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{a}}}{{\mathtt{5}}}}{\mathtt{\,\times\,}}{\mathtt{7}}{\mathtt{\,\times\,}}{\mathtt{c}}}{{\mathtt{4}}}} = {\frac{{\mathtt{14}}{\mathtt{\,\times\,}}{\mathtt{ac}}}{{\mathtt{20}}}}$$
= $${\frac{{\mathtt{7}}{\mathtt{\,\times\,}}{\mathtt{ac}}}{{\mathtt{10}}}}$$
.+118723 $${\frac{{\frac{{\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{a}}}{{\mathtt{5}}}}{\mathtt{\,\times\,}}{\mathtt{7}}{\mathtt{\,\times\,}}{\mathtt{c}}}{{\mathtt{4}}}} = {\frac{{\mathtt{14}}{\mathtt{\,\times\,}}{\mathtt{ac}}}{{\mathtt{20}}}}$$
= $${\frac{{\mathtt{7}}{\mathtt{\,\times\,}}{\mathtt{ac}}}{{\mathtt{10}}}}$$
