Solution - Simplification or other simple results

Step  1  :

             a
 Simplify   ——
            24

Equation at the end of step  1  :

        a
  (6 • ——) • a
       24

Step  2  :

Multiplying exponential expressions :

 2.1    a¹ multiplied by a¹ = a^{(1 + 1)} = a²

Final result :

  a2
  ——
  4