Solution - Power equations

Step  1  :

Equation at the end of step  1  :

Step  2  :

Equation at the end of step  2  :

Step  3  :

            57
 Simplify   ——
            58

Dividing exponents :

 3.1    5⁷   divided by   5⁸   = 5^{(7 - 8)} = 5^(-1) = ¹/_5¹ = ¹/₅

Final result :

  1           
  — = 0.20000 
  5