2.205 Найдите сумму: a) $$4\frac{2}{9}+3\frac{5}{18}$$; в) $$7\frac{11}{12}+1\frac{3}{8}$$; д) $$6\frac{5}{11}+5$$; ж) $$6+4\frac{2}{7}$$; б) $$3\frac{5}{12}+4\frac{7}{9}$$; г) $$4\frac{3}{8}+2\frac{4}{11}$$; е) $$7\frac{3}{7}+\frac{5}{21}$$; з) $$\frac{3}{7}+3\frac{4}{5}$$; 2.206 Найдите разность: a) $$1-\frac{4}{5}$$; б) $$2-\frac{3}{7}$$; в) $$7-\frac{4}{13}$$; г) $$6-1\frac{5}{9}$$; д) $$9-3\frac{4}{7}$$; е) $$5-4\frac{2}{11}$$; 2.207 выполните вычитание: a) $$5\frac{7}{15}-\frac{3}{20}$$; в) $$6\frac{5}{7}-\frac{3}{14}$$; д) $$3\frac{2}{3}-3\frac{4}{11}$$; б) $$4\frac{7}{12}-\frac{2}{9}$$; г) $$7\frac{5}{7}-4\frac{2}{3}$$; е) $$7\frac{5}{12}-3\frac{2}{9}$$; 2.208 Выполните действие: a) $$1\frac{4}{15}-\frac{17}{20}$$; в) $$2\frac{5}{12}-\frac{7}{8}$$; д) $$9\frac{2}{11}-7\frac{5}{9}$$; ж) $$3\frac{1}{2}-2\frac{3}{4}$$; б) $$7\frac{4}{15}-\frac{7}{9}$$; г) $$11\frac{1}{2}-3\frac{11}{18}$$; е) $$2\frac{6}{25}-1\frac{7}{10}$$; з) $$12\frac{5}{12}-9\frac{13}{18}$$;

Я могу помочь вам решить эти примеры. 2.205 Найдите сумму: a) $$4\frac{2}{9}+3\frac{5}{18} = 4\frac{4}{18}+3\frac{5}{18} = 7\frac{9}{18} = 7\frac{1}{2}$$ в) $$7\frac{11}{12}+1\frac{3}{8} = 7\frac{22}{24}+1\frac{9}{24} = 8\frac{31}{24} = 9\frac{7}{24}$$ д) $$6\frac{5}{11}+5 = 11\frac{5}{11}$$ ж) $$6+4\frac{2}{7} = 10\frac{2}{7}$$ б) $$3\frac{5}{12}+4\frac{7}{9} = 3\frac{15}{36}+4\frac{28}{36} = 7\frac{43}{36} = 8\frac{7}{36}$$ г) $$4\frac{3}{8}+2\frac{4}{11} = 4\frac{33}{88}+2\frac{32}{88} = 6\frac{65}{88}$$ е) $$7\frac{3}{7}+\frac{5}{21} = 7\frac{9}{21}+\frac{5}{21} = 7\frac{14}{21} = 7\frac{2}{3}$$ з) $$\frac{3}{7}+3\frac{4}{5} = \frac{15}{35}+3\frac{28}{35} = 3\frac{43}{35} = 4\frac{8}{35}$$ 2.206 Найдите разность: a) $$1-\frac{4}{5} = \frac{5}{5}-\frac{4}{5} = \frac{1}{5}$$ б) $$2-\frac{3}{7} = \frac{14}{7}-\frac{3}{7} = \frac{11}{7} = 1\frac{4}{7}$$ в) $$7-\frac{4}{13} = \frac{91}{13}-\frac{4}{13} = \frac{87}{13} = 6\frac{9}{13}$$ г) $$6-1\frac{5}{9} = 5\frac{9}{9}-1\frac{5}{9} = 4\frac{4}{9}$$ д) $$9-3\frac{4}{7} = 8\frac{7}{7}-3\frac{4}{7} = 5\frac{3}{7}$$ е) $$5-4\frac{2}{11} = 4\frac{11}{11}-4\frac{2}{11} = \frac{9}{11}$$ 2.207 Выполните вычитание: a) $$5\frac{7}{15}-\frac{3}{20} = 5\frac{28}{60}-\frac{9}{60} = 5\frac{19}{60}$$ в) $$6\frac{5}{7}-\frac{3}{14} = 6\frac{10}{14}-\frac{3}{14} = 6\frac{7}{14} = 6\frac{1}{2}$$ д) $$3\frac{2}{3}-3\frac{4}{11} = 3\frac{22}{33}-3\frac{12}{33} = \frac{10}{33}$$ б) $$4\frac{7}{12}-\frac{2}{9} = 4\frac{21}{36}-\frac{8}{36} = 4\frac{13}{36}$$ г) $$7\frac{5}{7}-4\frac{2}{3} = 7\frac{15}{21}-4\frac{14}{21} = 3\frac{1}{21}$$ е) $$7\frac{5}{12}-3\frac{2}{9} = 7\frac{15}{36}-3\frac{8}{36} = 4\frac{7}{36}$$ 2.208 Выполните действие: a) $$1\frac{4}{15}-\frac{17}{20} = 1\frac{16}{60}-\frac{51}{60} = \frac{76}{60}-\frac{51}{60} = \frac{25}{60} = \frac{5}{12}$$ в) $$2\frac{5}{12}-\frac{7}{8} = 2\frac{10}{24}-\frac{21}{24} = \frac{58}{24}-\frac{21}{24} = \frac{37}{24} = 1\frac{13}{24}$$ д) $$9\frac{2}{11}-7\frac{5}{9} = 9\frac{18}{99}-7\frac{55}{99} = 8\frac{117}{99}-7\frac{55}{99} = 1\frac{62}{99}$$ ж) $$3\frac{1}{2}-2\frac{3}{4} = 3\frac{2}{4}-2\frac{3}{4} = 2\frac{6}{4}-2\frac{3}{4} = \frac{3}{4}$$ б) $$7\frac{4}{15}-\frac{7}{9} = 7\frac{12}{45}-\frac{35}{45} = 6\frac{57}{45}-\frac{35}{45} = 6\frac{22}{45}$$ г) $$11\frac{1}{2}-3\frac{11}{18} = 11\frac{9}{18}-3\frac{11}{18} = 10\frac{27}{18}-3\frac{11}{18} = 7\frac{16}{18} = 7\frac{8}{9}$$ е) $$2\frac{6}{25}-1\frac{7}{10} = 2\frac{12}{50}-1\frac{35}{50} = 1\frac{62}{50}-1\frac{35}{50} = \frac{27}{50}$$ з) $$12\frac{5}{12}-9\frac{13}{18} = 12\frac{15}{36}-9\frac{26}{36} = 11\frac{51}{36}-9\frac{26}{36} = 2\frac{25}{36}$$