ГДЗ: Упражнение 2.53 — Разложение числа на множители / Математика 6 класс. Часть 1

(4) : (9) = \(\frac{4}{9}\);
(7) : (9) = \(\frac{7}{9}\);
(\(\frac{4}{9}\)) + (\(\frac{7}{9}\)) = \(1\,\frac{2}{9}\);
(1) : (9) = \(\frac{1}{9}\);
(\(1\,\frac{2}{9}\)) − (\(\frac{1}{9}\)) = \(1\,\frac{1}{9}\). Ответ: \(1\,\frac{1}{9}\).

(6) : (7) = \(\frac{6}{7}\);
(5) : (7) = \(\frac{5}{7}\);
(1) : (7) = \(\frac{1}{7}\);
(\(\frac{5}{7}\)) − (\(\frac{1}{7}\)) = \(\frac{4}{7}\);
(\(\frac{6}{7}\)) − (\(\frac{4}{7}\)) = \(\frac{2}{7}\). Ответ: \(\frac{2}{7}\).

(6) : (39) = \(\frac{2}{13}\);
(5) + (\(\frac{2}{13}\)) = \(5\,\frac{2}{13}\);
(7) : (78) = \(\frac{7}{78}\);
(4) + (\(\frac{7}{78}\)) = \(4\,\frac{7}{78}\);
(\(5\,\frac{2}{13}\)) + (\(4\,\frac{7}{78}\)) = \(9\,\frac{19}{78}\). Ответ: \(9\,\frac{19}{78}\).

(13) : (15) = \(\frac{13}{15}\);
(7) + (\(\frac{13}{15}\)) = \(7\,\frac{13}{15}\);
(11) : (30) = \(\frac{11}{30}\);
(3) + (\(\frac{11}{30}\)) = \(3\,\frac{11}{30}\);
(\(7\,\frac{13}{15}\)) − (\(3\,\frac{11}{30}\)) = 4,5. Ответ: 4,5.

(7) : (8) = 0,875;
(4) : (35) = \(\frac{4}{35}\);
(0,875) · (\(\frac{4}{35}\)) = 0,1;
(10) : (9) = \(1\,\frac{1}{9}\);
(0,1) · (\(1\,\frac{1}{9}\)) = \(\frac{1}{9}\). Ответ: \(\frac{1}{9}\).

(1) : (2) = 0,5;
(3) : (4) = 0,75;
(0,5) : (0,75) = \(\frac{2}{3}\);
(4) : (9) = \(\frac{4}{9}\);
(\(\frac{2}{3}\)) − (\(\frac{4}{9}\)) = \(\frac{2}{9}\);
(5) : (3) = \(1\,\frac{2}{3}\);
(\(\frac{2}{9}\)) · (\(1\,\frac{2}{3}\)) = \(\frac{10}{27}\). Ответ: \(\frac{10}{27}\).