a) \[14 - \frac{6}{9} = 13 + 1 - \frac{6}{9} = 13 + \frac{9}{9} - \frac{6}{9} = 13 + \frac{9-6}{9} = 13 + \frac{3}{9} = 13\frac{3}{9} = 13\frac{1}{3}\]
б) \[82 - \frac{7}{15} = 81 + 1 - \frac{7}{15} = 81 + \frac{15}{15} - \frac{7}{15} = 81 + \frac{15-7}{15} = 81 + \frac{8}{15} = 81\frac{8}{15}\]
в) \[5 - 4\frac{3}{4} = 5 - \frac{4 \cdot 4 + 3}{4} = 5 - \frac{16+3}{4} = 5 - \frac{19}{4} = \frac{5 \cdot 4}{4} - \frac{19}{4} = \frac{20}{4} - \frac{19}{4} = \frac{20-19}{4} = \frac{1}{4}\]
г) \[44 - 3 = 41\]
Ответ:
a) \[13\frac{1}{3}\];
б) \[81\frac{8}{15}\];
в) \[\frac{1}{4}\];
г) \[41\]