Предмет: Математика, автор: aylarakadyrova9

Выполните действия:
А) 5 8/15+4 7/12-3 19/20
Б) 20 7/18-(15 5/6-9 25/27
В) (36 2/3+3 1/8)-(18-10 5/9)

Ответы

Автор ответа: brainleum
1

Ответ:

А = 6\frac{1}{6}

Б = 4\frac{13}{27}

В = 32\frac{25}{72}

Пошаговое объяснение:

А) = 6\frac{1}{6}

1) 5\frac{8}{15} + 4\frac{7}{12} = 10\frac{7}{60}

2)  10\frac{7}{60} - 3\frac{19}{20} = 6\frac{1}{6}

Б) = 4\frac{13}{27}

1) 20\frac{7}{18} - (15\frac{5}{6} - 9\frac{25}{27}) = 4\frac{13}{27}

В) = 32\frac{25}{72}

1) 36\frac{2}{3} + 3\frac{1}{8} = 39\frac{19}{24}

2) 18 - 10\frac{5}{9} = 7\frac{4}{9}

3) 39\frac{19}{24} - 7\frac{4}{9} = 32\frac{25}{72}

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