Решебник по математике 5 класс Виленкин Часть 1, 2 Часть 2. Параграф 5. Обыкновенные дроби Задание 231

\[\boxed{\text{5.231.}}\]

\[\textbf{а)}\ b = 23,\ q = 69,\ r = 48:\]

\[a = 23 \cdot 69 + 48 =\]

\[= 1\ 587 + 48 = 1\ 635.\ \]

\[\textbf{б)}\ a = 419,\ q = 34,\ r = 11:\]

\[419 = b \cdot 34 + 11\]

\[34b = 419 - 11\]

\[34b = 408\]

\[b = 408\ :34\]

\[b = 12.\ \]

\[\textbf{в)}\ a = 375,\ b = 28,\ r = 11:\ \]

\[375 = 28 \cdot q + 11\]

\[28q = 375 - 11\]

\[28q = 364\]

\[q = 364\ :28\]

\[q = 13.\ \]

\[\textbf{г)}\ a = 123,\ b = 20,\ q = 6:\ \]

\[123 = 20 \cdot 6 + r\]

\[123 = 120 + r\]

\[r = 123 - 120\]

\[r = 3.\]