Вычислите: 14) $\frac{1}{9}\cdot3$; 15) $\frac{1}{4}\cdot64$; 16) $\frac{3}{10}:9$; 17) $\frac{3}{17}:9$; 18) $9:\frac{18}{19}$; 19) $6:\frac{36}{37}$; 20) $\frac{7}{12}:7$; 21) $\frac{16}{43}:4$; 22) $24:2\frac{4}{10}$; 23) $4\frac{5}{9}:\frac{7}{9}$; 24) $3\frac{3}{5}\cdot1\frac{7}{18}$; 25) $6\frac{3}{8}:25\frac{1}{2}$; 26) $2\frac{2}{5}:6\frac{6}{7}$.

Question

Вопрос: $Фото задания: Вычислите: 14) $\frac{1}{9}\cdot3$; 15) $\frac{1}{4}\cdot64$; 16) $\frac{3}{10}:9$; 17) $\frac{3}{17}:9$; 18)…$ Фото задания

Accepted Answer

$\frac{1}{9}\cdot3=\frac{1}{3}$.
$\frac{1}{4}\cdot64=16$.
$\frac{3}{10}:9=\frac{3}{10}\cdot\frac{1}{9}=\frac{1}{30}$.
$\frac{3}{17}:9=\frac{3}{17}\cdot\frac{1}{9}=\frac{1}{51}$.
$9:\frac{18}{19}=9\cdot\frac{19}{18}=\frac{19}{2}=9\frac{1}{2}$.
$6:\frac{36}{37}=6\cdot\frac{37}{36}=\frac{37}{6}=6\frac{1}{6}$.
$\frac{7}{12}:7=\frac{7}{12}\cdot\frac{1}{7}=\frac{1}{12}$.
$\frac{16}{43}:4=\frac{16}{43}\cdot\frac{1}{4}=\frac{4}{43}$.
$24:2\frac{4}{10}=24:\frac{12}{5}=24\cdot\frac{5}{12}=10$.
$4\frac{5}{9}:\frac{7}{9}=\frac{41}{9}\cdot\frac{9}{7}=\frac{41}{7}=5\frac{6}{7}$.
$3\frac{3}{5}\cdot1\frac{7}{18}=\frac{18}{5}\cdot\frac{25}{18}=5$.
$6\frac{3}{8}:25\frac{1}{2}=\frac{51}{8}:\frac{51}{2}=\frac{51}{8}\cdot\frac{2}{51}=\frac{1}{4}$.
$2\frac{2}{5}:6\frac{6}{7}=\frac{12}{5}:\frac{48}{7}=\frac{12}{5}\cdot\frac{7}{48}=\frac{7}{20}$.

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