Вычислите: \(\frac{5}{28}+\frac{4}{7}\) . \(\frac{21}{28}\) . \(\frac{9}{28}\) . \(\frac{12}{28}\) . 1.
Задание

Вычислите: \(\frac{5}{28}+\frac{4}{7}\) .

  • \(\frac{21}{28}\) .
  • \(\frac{9}{28}\) .
  • \(\frac{12}{28}\) .
  • 1.