+752 56 -8[(5 +40 -12)/20]
56 -8(33/20)
56 -66/5
(280 - 66)/5
114/5
22.8//
+118677 just a little mistake Sasini
280-66=214
$${\mathtt{56}}{\mathtt{\,-\,}}{\mathtt{8}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{4}}}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{2}}}{{\mathtt{1}}}}{\mathtt{\,-\,}}{\frac{{\mathtt{3}}}{{\mathtt{5}}}}\right) = {\frac{{\mathtt{214}}}{{\mathtt{5}}}} = {\mathtt{42.8}}$$
