Распредели элементы

Приведи к общему знаменателю дроби:

а) \(\dfrac 2 3\) и \(\dfrac 4 5; \,\,\,\,\,\,\,\,\,\,\,\,\) б) \(\dfrac 3 {14}\) и \(\dfrac 5 7; \,\,\,\,\,\,\,\,\,\,\,\,\)

в) \(\dfrac 2 3\) и \(\dfrac 5 7; \,\,\,\,\,\,\,\,\,\,\,\,\) г) \(\dfrac 3 {10}\) и \(\dfrac 5 {8}\) .

Ответ:

• \(\frac{15}{15}\) и \(\frac{10}{15}\)
• \(\frac{4}{15}\) и \(\frac{4}{15}\)
• \(\frac{10}{15}\) и \(\frac{12}{15}\)
• \(\frac{3}{15}\) и \(\frac{10}{15}\)
• \(\frac{3}{14}\) и \(\frac{5}{14}\)
• \(\frac{3}{14}\) и \(\frac{10}{14}\)
• \(\frac{2}{7}\) и \(\frac{5}{7}\)
• \(\frac{2}{6}\) и \(\frac{5}{14}\)
• \(\frac{14}{21}\) и \(\frac{15}{21}\)
• \(\frac{3}{10}\) и \(\frac{5}{10}\)
• \(\frac{3}{80}\) и \(\frac{5}{80}\)
• \(\frac{12}{40}\) и \(\frac{25}{40}\)

а) [ ];

б) [ ];

в) [ ];

г) [ ].