А) 5\12+11\24 б) 17\18-7\9 а) 2 4\11+3 8\11 б)4 6\17-1 10\17 (смешанные)

а)[latex] \frac{5}{12} + \frac{11}{24}= \frac{10+11}{24} = \frac{21}{24} [/latex] б) [latex] \frac{17}{18}- \frac{7}{9}= \frac{17-13}{18} = \frac{4}{18} = \frac{2}{9} [/latex] а)[latex] 2\frac{4}{11}+3\frac{8}{11} = 6\frac{1}{11} [/latex] б)[latex] 4\frac{6}{17} - 1\frac{10}{17} =2 \frac{13}{17} [/latex]