الصيغة 1احسب :
\( \left(\dfrac{5}{10}-\dfrac{2}{895}\right)-\left(\dfrac{1}{4}-\dfrac{2}{895}\right) \)
✅ التصحيح
بتطبيق: (a-c)−(b-c) = a−b [c يختصر]
\( \left(\dfrac{5}{10}-\dfrac{2}{895}\right)-\left(\dfrac{1}{4}-\dfrac{2}{895}\right) = \dfrac{5}{10}-\dfrac{1}{4} = \dfrac{1}{4} \)