what is the % notation of 6.3

Question

 what is the % notation of 6.3

Answer 1

Think of a percentage as ratio, a standard ratio which all numbers  are compared to 100, how many times are greater or smaller than 100.

 

 In other words percentage is a fraction whose denominator is always 100.

 

   You know that, always numerator and denominator of a fraction can be multiplied by a number and don't change the value of the fractions.

 

    The numbers that are divisible by 100, { 1,2, 4, 5, 10, 20, 50), to find the  percentage value of fractions:

    

      1/ 2 , 1/4 . 1/5 , 1/10, 1/20 , 1/25,  1/50 , we will make denominator 100

 

       1/2 = ( 1* 50) /(2 * 50) = 50/100 = 50 * 1/ 100 = 50 %

      

       1/ 3 = 0.33 = 33 %   ( here 100 is not divisible by 3), so we carry the division, and we know that in 

                                        our numbering system 0.33 reads 33 hundredth , 33 parts out of 100.

                                         so:

                                         0.33 * 100 * 1/100 = 33%

 

       1/4 = 25/ 100 = 25%

 

       Think of converting any number to percentage value is same as converting dollar to cents

 

         c = % = 1/100 = 0.01

       

          Percentage value of number 2 is same as how many cents ( 1/100 of dollars) make 2 dollars.

         

           $ 2 = 200 c,      2 = 200%

         

             In each case I multiplied 2 * 100, and divided by 1/100, and replaced the 1/100 by c, %.

 

              If I asked  2 to 1 is what number to 100.

 

              and I set the proportion relationship.

 

 

              2/1 = x/100, and solve the X by cross multiplication X = 200

 

               2/ 1 = 200/100 = 200 * 1/100 = 200%

 

 

               

        

 

 

 

 

 

       

        

Answer 2

630%.  Remember, to put it in percent notation, you multiply by 100.  Or, move the decimal two spaces to the left.  Kudos!