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Percentage-Decimal-Fraction Relations Calculator

Choose the appropriate button below, enter your numbers, and press Calculate.
 divided by  equals what percent (%) and what decimal?  
 is  percent (%) of what number?  
 percent (%) of   equals what number?  
 percent (%)   equals what number?  
Convert  percent (%) to a decimal and a fraction.  
Convert the decimal  to a percentage and a fraction.  
Calculate the percentage change from  to   
What percent of  is   
% of % is  
  
40 is 80 percent (%) of what number?

Let's call our missing number x.
Expressing this in terms of an equation, we get 40 = 80% * x
Since a percentage is just the percent number divided by 100, we have:
40  =  80x
  100

Multiply both sides of the equation through by 100 and simplify:
40 * 100  =  80 * 100x
  100

  4000  =  80x

Since we want to solve for our missing number x, divide each side of the equation by 80
4000
80
=
  
80x
80

Cancel both 80 and simplify:
4000
80
=
  
80x
80

x  =  4000
  80

Therefore, our missing number x = 50
Now we know that 40 is 80 percent (%) of 50.


How does the Percentage-Decimal-Fraction Relations Calculator work?

Calculates the relational items between a fraction, a decimal (including repeating decimal and terminating decimal), a percentage, and the numerator and denominator piece of that fraction. Also calculates the percentage change going from one number to another or the amount increase or decrease of a percentage above/below a number. Round decimals. decimals into fractions
This calculator has 1 input.

What 3 formulas are used for the Percentage-Decimal-Fraction Relations Calculator?

  1. Percent = Decimal * 100%
  2. Decimal = Percent/100
  3. Decimal = Numerator/Denominator

For more math formulas, check out our Formula Dossier

What 6 concepts are covered in the Percentage-Decimal-Fraction Relations Calculator?

decimal
Number in the form a/b where the result is not a whole number
denominator
The bottom portion of a fraction. For a/b, b is the denominator
fraction
how many parts of a certain size exist
a/b where a is the numerator and b is the denominator
numerator
the number above the line in a common fraction
percent
a specified amount in or for every hundred. one part in every hundred.
n% = n/100
percentage-decimal-fraction relations

Example calculations for the Percentage-Decimal-Fraction Relations Calculator

  1. 20% of 50
  2. 42 percent of 80
  3. 1/8 to decimal
  4. convert 5/9 to decimal
  5. 88.596 to fraction
  6. 45 is 10% of what number
  7. 55 is 60% of what?
  8. 80% of what number =40
  9. What is the percent change from 90 to 110
  10. What percent of 20 is 30?
  11. 45% of what is 9
  12. 10% more than 90
  13. 30% less than 120
  14. What percent of 3000 is 389.4

Percentage-Decimal-Fraction Relations Calculator Video


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