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blondinia [14]
3 years ago
15

68 1/4% as a decimal

Mathematics
1 answer:
eduard3 years ago
6 0

Answer:   The correct answer is:  " 0.6825 ".

_______________________________________________

Step-by-step explanation:

_______________________________________________

We are asked to convert:  " 68 \frac{1}{4} % " ;  to a "decimal" .

_______________________________________________

1)  Rewrite:  " 68 \frac{1}{4} " ;   as a "decimal value" :

           " 68 \frac{1}{4} "  =   68 + \frac{1}{4} ;

         →  " \frac{1}{4} "  =  1 / 4  =  1 ÷ 4 =  0.25  . (use calculator).

Or:     →    " \frac{1}{4} "  =  " \frac{?}{100} " ;

   

→  Find the "?" value:

_______________________________________________

Let us consider the "denominators" ;

          →    4 * (what value)  =  100 :  

            →  100/ 4 = 100 ÷ 4 = 25 .

So:   4 * 25  = 100;  

So, to find the "?" value in the numerator:

→   1 * 25 = ("?") ;  

→   1 * 25 = 25 ;

_______________________________________________

So, we have:

_______________________________________________

→    " \frac{1}{4} "  =  " \frac{?}{100} " ;

Rewrite; and replace the "?" value with our know value:  " 25 " :

→    " \frac{1}{4} "  =  " \frac{25}{100} " ;

Note that:  " \frac{25}{100} "  ;

                        =  25/100 = 25 ÷ 100  = 0.25  .  {Use calculator.}.,

               Or:  25 ÷ 100 = ?   ;  

→  When dividing by "100" ;  we take the number; and move the decimal point  back 2 (two) spaces;  since "100" has 2 (two) zeros.

                             →   25 ÷ 100  =  25.  ÷  100  =  .25;  

                                   →  write as:  " 0.25" .

_______________________________________________

So:  " 68  \frac{1}{4} "  =   68  +  0.25 =   68.25  .

As such:  " 68  \frac{1}{4} % "  =  68.25 % ;

_______________________________________________

Now, we write:  " 68.25 % " as a decimal ;

<u>Note</u>:  " % " ; or "percent" ;  means "per hundred" ; or "parts per hundred" ;

or;  "divide by 100" ;

_______________________________________________

 So;  to write:  " 68.25 % " as a decimal ;

                         →   " 68.25 ÷ 100 "  =  0.6825 .  {← Use calculator.}.

                 Or:   → 68.2 ÷ 100 = ?   ;  

→  When dividing by "100" ;  we take the number; and move the decimal point  back 2 (two) spaces;  since "100" has 2 (two) zeros.

                             →   " 68.25 ÷ 100 "  ÷  100  =  .6825 ;  

                                   →  write as:  " 0.6825 " .

_______________________________________________

The answer is:  " 0.6825 " .

_______________________________________________

Hope this answer is helpful to you!

          Wishing you the best in your academic pursuits

                — and within the "Brainly" community!

_______________________________________________

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