4 3124\ \frac{3}{12}4 123 : 1 151\ \frac{1}{5}1 51 ×\times× 1 231\ \frac{2}{3}1 32 =...
6572\frac{65}{72}7265
5 65725\ \frac{65}{72}5 7265
2 1722\ \frac{1}{72}2 721
872\frac{8}{72}728