الصيغة 1احسب :
\( \left(\dfrac{3}{5}+\dfrac{28}{676}\right)+\left(\dfrac{1}{2}-\dfrac{28}{676}\right) \)
✅ التصحيح
بتطبيق: (a+c)+(b-c) = a+b [c يختصر]
\( \left(\dfrac{3}{5}+\dfrac{28}{676}\right)+\left(\dfrac{1}{2}-\dfrac{28}{676}\right) = \dfrac{3}{5}+\dfrac{1}{2} = \dfrac{11}{10} \)