Задание 1: Заполни пропуски, используя основное свойство дроби a) \frac{1}{2} = \frac{}{4} = \frac{3}{=} = \frac{}{8} б) \frac{2}{3} = \frac{}{6} = \frac{4}{=} = \frac{8}{12} в) \frac{3}{5} = \frac{}{10} = \frac{9}{=} = \frac{}{20} = \frac{15}{} г) \frac{4}{7} = \frac{}{=} = \frac{8}{21} = \frac{16}{=} = \frac{}{35} д) \frac{12}{18} = \frac{}{3} = \frac{6}{=}

Задание 1: Заполни пропуски, используя основное свойство дроби

1. a) \(\frac{1}{2} = \frac{1 \times 2}{2 \times 2} = \frac{2}{4} = \frac{3}{2 \times 3} = \frac{3}{6} = \frac{1 \times 4}{2 \times 4} = \frac{4}{8}\)
2. б) \(\frac{2}{3} = \frac{2 \times 2}{3 \times 2} = \frac{4}{6} = \frac{4}{6} = \frac{4 \times 2}{3 \times 2} = \frac{8}{12}\)
3. в) \(\frac{3}{5} = \frac{3 \times 2}{5 \times 2} = \frac{6}{10} = \frac{3 \times 3}{5 \times 3} = \frac{9}{15} = \frac{3 \times 4}{5 \times 4} = \frac{12}{20} = \frac{15}{5 \times 5} = \frac{15}{25}\)
4. г) \(\frac{4}{7} = \frac{4 \times 2}{7 \times 2} = \frac{8}{14} = \frac{8}{21} = \frac{16}{7 \times 4} = \frac{16}{28} = \frac{4 \times 5}{7 \times 5} = \frac{20}{35}\)
5. д) \(\frac{12}{18} = \frac{12 \div 6}{18 \div 6} = \frac{2}{3} = \frac{6}{18 \div 3} = \frac{6}{9}\)

Ответ: Заполнены пропуски в дробях.