a) $$6-\frac{7}{6} = \frac{6 \cdot 6}{6} - \frac{7}{6} = \frac{36}{6} - \frac{7}{6} = \frac{36-7}{6} = \frac{29}{6} = 4\frac{5}{6}$$ Ответ: $$4\frac{5}{6}$$
б) $$\frac{11}{28} - \frac{7}{33} = \frac{11 \cdot 3}{28 \cdot 3} - \frac{7 \cdot 28}{33 \cdot 28} = \frac{33}{84} - \frac{196}{924} = \frac{33 \cdot 11}{84 \cdot 11} - \frac{196}{924} = \frac{363}{924} - \frac{196}{924} = \frac{363-196}{924} = \frac{167}{924}$$ Ответ: $$\frac{167}{924}$$
в) $$6-\frac{3}{5} = \frac{6 \cdot 5}{5} - \frac{3}{5} = \frac{30}{5} - \frac{3}{5} = \frac{30-3}{5} = \frac{27}{5} = 5\frac{2}{5}$$ Ответ: $$5\frac{2}{5}$$
г) $$\frac{3}{8} : \frac{9}{16} = \frac{3}{8} \cdot \frac{16}{9} = \frac{3 \cdot 16}{8 \cdot 9} = \frac{3 \cdot 8 \cdot 2}{8 \cdot 3 \cdot 3} = \frac{2}{3}$$ Ответ: $$\frac{2}{3}$$
д) $$\frac{15}{16} : 5 = \frac{15}{16} : \frac{5}{1} = \frac{15}{16} \cdot \frac{1}{5} = \frac{15 \cdot 1}{16 \cdot 5} = \frac{3 \cdot 5 \cdot 1}{16 \cdot 5} = \frac{3}{16}$$ Ответ: $$\frac{3}{16}$$
е) $$\frac{3}{14} = \frac{3}{14}$$ Ответ: $$\frac{3}{14}$$