Question

3pe 28 + 1 pw 72 + 5 pe 84 ..Dau coroană

Answer 1

$\frac{3}28}$+$\frac{1}{72}$+$\frac{5}{84}$=
=$\frac{9}{84}$+$\frac{1}{72}$+$\frac{5}{84}$
=$\frac{14}{84}$+$\frac{1}{72}$
=$\frac{1}{6}$+$\frac{1}{72}$
=$\frac{12}{72}$+$\frac{1}{72}$
=$\frac{13}{72}$