ВАРИАНТ 1. 1. Найдите значение выражения: a) \frac{2}{9} + \frac{6}{9} - \frac{3}{9}; б) 8 \frac{25}{27} - (3 \frac{8}{27} + 2 \frac{3}{27}); в) (8 \frac{3}{17} - 7 \frac{15}{17}) + 3 \frac{16}{17}

1. Найдем значение выражения:

а) \(\frac{2}{9} + \frac{6}{9} - \frac{3}{9}\) = \(\frac{2 + 6 - 3}{9}\) = \(\frac{8 - 3}{9}\) = \(\frac{5}{9}\)

б) \(8 \frac{25}{27} - (3 \frac{8}{27} + 2 \frac{3}{27})\) = \(8 \frac{25}{27} - 5 \frac{11}{27}\) = \(3 \frac{14}{27}\)

в) \((8 \frac{3}{17} - 7 \frac{15}{17}) + 3 \frac{16}{17}\) = \((7 \frac{20}{17} - 7 \frac{15}{17}) + 3 \frac{16}{17}\) = \(\frac{5}{17} + 3 \frac{16}{17}\) = \(3 \frac{21}{17}\) = \(4 \frac{4}{17}\)

Ответ: а) \(\frac{5}{9}\); б) \(3 \frac{14}{27}\); в) \(4 \frac{4}{17}\)