a)
- $$\frac{14}{18} - \frac{5}{18} = \frac{14-5}{18} = \frac{9}{18} = \frac{9:9}{18:9} = \frac{1}{2}$$.
б)
- $$\frac{5}{22} + \frac{6}{22} = \frac{5+6}{22} = \frac{11}{22} = \frac{11:11}{22:11} = \frac{1}{2}$$.
в)
- $$6 \frac{7}{6} - 1 \frac{3}{6} = (6-1) + (\frac{7}{6} - \frac{3}{6}) = 5 + \frac{7-3}{6} = 5 + \frac{4}{6} = 5 + \frac{4:2}{6:2} = 5 + \frac{2}{3} = 5\frac{2}{3}$$.
г)
- $$7 \frac{5}{27} + 3 \frac{4}{27} = (7+3) + (\frac{5}{27} + \frac{4}{27}) = 10 + \frac{5+4}{27} = 10 + \frac{9}{27} = 10 + \frac{9:9}{27:9} = 10 + \frac{1}{3} = 10\frac{1}{3}$$.
Ответ: а) 1/2; б) 1/2; в) $$5\frac{2}{3}$$; г) $$10\frac{1}{3}$$