Упр.52 Вариант 3 Дидактические материалы ГДЗ Мерзляк Полонский 6 класс (Математика)

Выполните вычитание:

1. $$4\frac{1}{12}-\frac{1}{6}$$;
2. $$5\frac{5}{9}-2\frac{4}{7}$$;
3. $$8\frac{6}{35}-6\frac{7}{10}$$;
4. $$9\frac{11}{24}-7\frac{19}{36}$$;
5. $$9\frac{8}{35}-2\frac{52}{105}$$;
6. $$9\frac{5}{14}-3\frac{27}{49}$$.

1) $$4\frac{1}{12}-\frac{1}{6}=3\frac{13}{12}-\frac{2}{12}=3\frac{11}{12};$$

2) $$9\frac{11}{24}-7\frac{19}{36}=9\frac{33}{72}-7\frac{38}{72}=8\frac{105}{72}-7\frac{38}{72}=1\frac{67}{72};$$

3) $$5\frac{5}{9}-2\frac{4}{7}=5\frac{35}{63}-2\frac{36}{63}=4\frac{98}{63}-2\frac{36}{63}=2\frac{62}{63};$$

4) $$9\frac{8}{35}-2\frac{52}{105}=9\frac{24}{105}-2\frac{52}{105}=8\frac{129}{105}-2\frac{52}{105}=6\frac{77}{105}=6\frac{11}{15};$$

5) $$8\frac{6}{35}-6\frac{7}{10}=8\frac{12}{70}-6\frac{49}{70}=7\frac{82}{70}-6\frac{49}{70}=1\frac{33}{70};$$

6) $$9\frac{5}{14}-3\frac{27}{49}=9\frac{35}{98}-3\frac{54}{98}=8\frac{133}{98}-3\frac{54}{98}=5\frac{79}{98}.$$

Ответ: 1) $$3\frac{11}{12}$$; 2) $$1\frac{67}{72}$$; 3) $$2\frac{62}{63}$$; 4) $$6\frac{11}{15}$$; 5) $$1\frac{33}{70}$$; 6) $$5\frac{79}{98}$$.