$${\frac{{\mathtt{1.01}}}{{\mathtt{3}}}} = {\frac{{\mathtt{101}}}{{\mathtt{300}}}} = {\mathtt{0.336\: \!666\: \!666\: \!666\: \!666\: \!7}}$$
$${\frac{{{\mathtt{20}}}^{{\mathtt{2}}}{\mathtt{\,\times\,}}{\mathtt{\pi}}}{{\mathtt{3}}}} = {\mathtt{418.879\: \!020\: \!478\: \!639\: \!098\: \!5}}$$
$${\mathtt{284}}{\mathtt{\,\small\textbf+\,}}{\mathtt{40}}{\mathtt{\,-\,}}{\mathtt{150}} = {\mathtt{174}}$$
http://www.mathematik.de/spudema/spudema_beitraege/beitraege/stumpf/Wettbewerb_Spuren%20der%20Mathematik.html
http://de.wikipedia.org/wiki/Geschichte_der_Mathematik
$${\frac{{\mathtt{35}}}{{\mathtt{85}}}}{\mathtt{\,\times\,}}{\mathtt{100}} = {\frac{{\mathtt{700}}}{{\mathtt{17}}}} = {\mathtt{41.176\: \!470\: \!588\: \!235\: \!294\: \!1}}$$
http://www.mathematische-basteleien.de/tangram.htm