Solution - Simplification or other simple results

Step  1  :

            20
 Simplify   ——
            21

Equation at the end of step  1  :

   9         20
  —— ÷ (0 -  ——)
  11         21

Step  2  :

             9
 Simplify   ——
            11

Equation at the end of step  2  :

   9   -20
  —— ÷ ———
  11   21 

Step  3  :

          9      -20
 Divide  ——  by  ———
         11      21 

 3.1    Dividing fractions

To divide fractions, write the divison as multiplication by the reciprocal of the divisor :

 9     -20        9      21
——  ÷  ———   =   ——  •  ———
11     21        11     -20

Final result :

   189            
  ———— = -0.85909 
  -220