Вопрос:

№ 2 a) 0,5 + $$\frac{1}{3}$$; б) $$\frac{5}{6}$$ + 0,75; в) $$\frac{11}{15}$$ - 0,4; г) 0,95 - $$\frac{5}{12}$$.

Ответ:

Решим примеры: а) 0,5 + $$\frac{1}{3}$$ = $$\frac{1}{2}$$ + $$\frac{1}{3}$$ = $$\frac{3}{6}$$ + $$\frac{2}{6}$$ = $$\frac{5}{6}$$ $$ б) $$\frac{5}{6}$$ + 0,75 = $$\frac{5}{6}$$ + $$\frac{3}{4}$$ = $$\frac{10}{12}$$ + $$\frac{9}{12}$$ = $$\frac{19}{12}$$ = 1$$\frac{7}{12}$$$ в) $$\frac{11}{15}$$ - 0,4 = $$\frac{11}{15}$$ - $$\frac{4}{10}$$ = $$\frac{11}{15}$$ - $$\frac{2}{5}$$ = $$\frac{11}{15}$$ - $$\frac{6}{15}$$ = $$\frac{5}{15}$$ = $$\frac{1}{3}$$$ г) 0,95 - $$\frac{5}{12}$$ = $$\frac{95}{100}$$ - $$\frac{5}{12}$$ = $$\frac{19}{20}$$ - $$\frac{5}{12}$$ = $$\frac{57}{60}$$ - $$\frac{25}{60}$$ = $$\frac{32}{60}$$ = $$\frac{8}{15}$$
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