Ответ:

Чтобы разделить дробь на натуральное число, умножаем её знаменатель на это число. Целые и смешанные числа сначала представляем в виде дробей.

А: деление на 2Б: деление на 3В: деление на 5
\(\frac{4}{9}:2=\frac{2}{9}\)\(\frac{5}{8}:3=\frac{5}{24}\)\(\frac{5}{7}:5=\frac{1}{7}\)
\(\frac{3}{7}:2=\frac{3}{14}\)\(\frac{18}{19}:3=\frac{6}{19}\)\(\frac{2}{9}:5=\frac{2}{45}\)
\(5:2=2\frac{1}{2}\)\(2:3=\frac{2}{3}\)\(\frac{1}{4}:5=\frac{1}{20}\)
\(\frac{10}{11}:2=\frac{5}{11}\)\(\frac{9}{10}:3=\frac{3}{10}\)\(\frac{20}{21}:5=\frac{4}{21}\)
\(1\frac{1}{3}:2=\frac{2}{3}\)\(1\frac{1}{2}:3=\frac{1}{2}\)\(6:5=1\frac{1}{5}\)
\(\frac{7}{8}:2=\frac{7}{16}\)\(2\frac{2}{5}:3=\frac{4}{5}\)\(\frac{25}{27}:5=\frac{5}{27}\)
\(\frac{16}{17}:2=\frac{8}{17}\)\(\frac{6}{11}:3=\frac{2}{11}\)\(2:5=\frac{2}{5}\)
\(\frac{1}{2}:2=\frac{1}{4}\)\(\frac{4}{9}:3=\frac{4}{27}\)\(1\frac{1}{5}:5=\frac{6}{25}\)
\(3:2=1\frac{1}{2}\)\(1:3=\frac{1}{3}\)\(\frac{10}{11}:5=\frac{2}{11}\)
\(1\frac{1}{7}:2=\frac{4}{7}\)\(\frac{12}{17}:3=\frac{4}{17}\)\(0:5=0\)
\(\frac{1}{3}:2=\frac{1}{6}\)\(\frac{1}{2}:3=\frac{1}{6}\)\(\frac{7}{12}:5=\frac{7}{60}\)
\(\frac{2}{5}:2=\frac{1}{5}\)\(\frac{3}{7}:3=\frac{1}{7}\)\(\frac{15}{17}:5=\frac{3}{17}\)
\(\frac{3}{4}:2=\frac{3}{8}\)\(\frac{2}{5}:3=\frac{2}{15}\)\(1:5=\frac{1}{5}\)
\(\frac{8}{11}:2=\frac{4}{11}\)\(5:3=1\frac{2}{3}\)\(\frac{9}{20}:5=\frac{9}{100}\)
\(1:2=\frac{1}{2}\)\(\frac{15}{16}:3=\frac{5}{16}\)\(\frac{35}{79}:5=\frac{7}{79}\)