Вычислите: \(\frac{15}{21}-\frac{4}{21}\) . \(\frac{11}{21}\) . \(\frac{10}{20}\) . \(\frac{11}{17}\) . 1.
Задание

Вычислите: \(\frac{15}{21}-\frac{4}{21}\) .

  • \(\frac{11}{21}\) .
  • \(\frac{10}{20}\) .
  • \(\frac{11}{17}\) .
  • 1.