Вычислите: $\frac{25}{6}+\frac{2}{4}$; $\frac{1}{6}-\frac{5}{6}$; $1-\frac{9}{70}$; $1-\frac{5}{7}$; $\frac{4}{5}:\frac{3}{4}$; $\frac{3}{8}:\frac{2}{10}$; $\frac{26}{7}:\frac{11}{7}$; $6\frac{3}{5}:70$.

Question

$Фото задания: Вычислите: $\frac{25}{6}+\frac{2}{4}$; $\frac{1}{6}-\frac{5}{6}$; $1-\frac{9}{70}$; $1-\frac{5}{7}$;…$ Фото задания

Accepted Answer

$\frac{25}{6}+\frac{2}{4}=\frac{25}{6}+\frac{1}{2}=\frac{25}{6}+\frac{3}{6}=\frac{28}{6}=\frac{14}{3}=4\frac{2}{3}$.
$\frac{1}{6}-\frac{5}{6}=\frac{-4}{6}=-\frac{2}{3}$.
$1-\frac{9}{70}=\frac{70}{70}-\frac{9}{70}=\frac{61}{70}$.
$1-\frac{5}{7}=\frac{7}{7}-\frac{5}{7}=\frac{2}{7}$.
$\frac{4}{5}:\frac{3}{4}=\frac{4}{5}\cdot\frac{4}{3}=\frac{16}{15}=1\frac{1}{15}$.
$\frac{3}{8}:\frac{2}{10}=\frac{3}{8}\cdot\frac{10}{2}=\frac{15}{8}=1\frac{7}{8}$.
$\frac{26}{7}:\frac{11}{7}=\frac{26}{7}\cdot\frac{7}{11}=\frac{26}{11}=2\frac{4}{11}$.
$6\frac{3}{5}:70=\frac{33}{5}:70=\frac{33}{5}\cdot\frac{1}{70}=\frac{33}{350}$.

Ответ: $4\frac{2}{3};\ -\frac{2}{3};\ \frac{61}{70};\ \frac{2}{7};\ 1\frac{1}{15};\ 1\frac{7}{8};\ 2\frac{4}{11};\ \frac{33}{350}$.

Вычислите: \(\frac{25}{6}+\frac{2}{4}\); \(\frac{1}{6}-\frac{5}{6}\); \(1-\frac{9}{70}\); \(1-\frac{5}{7}\); \(\frac{4}{5}:\frac{3}{4}\); \(\frac{3}{8}:\frac{2}{10}\); \(\frac{26}{7}:\frac{11}{7}\); \(6\frac{3}{5}:70\).