54 Расшифруй скороговорку. Повтори её 10 раз подряд. T\frac{7}{9}+3\frac{2}{9}; A 15\frac{2}{9}-(7\frac{1}{9}+4\frac{5}{9}); O 9-5\frac{1}{4}; И (2\frac{5}{8}+8\frac{2}{7})-4\frac{7}{8}; P 1\frac{7}{15}+2\frac{6}{15}; X (4\frac{5}{8}+3\frac{3}{4})-(12-8\frac{1}{5}); П 5\frac{4}{7}-1\frac{1}{7}; С 12\frac{6}{11}-(5\frac{4}{11}+6\frac{9}{11}).

1. T $$\frac{7}{9}+3\frac{2}{9} = 3 \frac{9}{9} = 4$$
2. A $$15\frac{2}{9}-(7\frac{1}{9}+4\frac{5}{9}) = 15 \frac{2}{9} - 11 \frac{6}{9} = 3 \frac{5}{9}$$
3. O $$9-5\frac{1}{4} = 8\frac{4}{4}-5\frac{1}{4} = 3\frac{3}{4}$$
4. И $$(2\frac{5}{8}+8\frac{2}{7})-4\frac{7}{8} = (2\frac{5}{8}+8\frac{2}{7})-4\frac{7}{8} = 10\frac{5}{8}+ \frac{2}{7} - 4\frac{7}{8} = 5\frac{6}{8}+\frac{2}{7} = 5\frac{3}{4} + \frac{2}{7} = 5\frac{21}{28} + \frac{8}{28} = 5\frac{29}{28} = 6\frac{1}{28}$$
5. П $$5\frac{4}{7}-1\frac{1}{7} = 4\frac{3}{7}$$
6. X $$(4\frac{5}{8}+3\frac{3}{4})-(12-8\frac{1}{5}) = (4\frac{5}{8}+3\frac{6}{8})-(11\frac{5}{5}-8\frac{1}{5}) = 7\frac{11}{8}-3\frac{4}{5} = 8\frac{3}{8}-3\frac{4}{5} = 8\frac{15}{40}-3\frac{32}{40} = 7\frac{55}{40}-3\frac{32}{40} = 4\frac{23}{40}$$
7. C $$12\frac{6}{11}-(5\frac{4}{11}+6\frac{9}{11}) = 12\frac{6}{11}-(11\frac{13}{11}) = 12\frac{6}{11}-12\frac{2}{11} = \frac{4}{11}$$
8. П $$1\frac{7}{15}+2\frac{6}{15}=3\frac{13}{15}$$

4 3\frac{5}{9} 3\frac{3}{4} 6\frac{1}{28} 4\frac{3}{7} 4\frac{23}{40} $$\frac{4}{11}$$ 3\frac{13}{15}

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Ответ: скороговорка не расшифрована