Convert the decimal number 0.1225. Turn it into a reduced (simplified) proper fraction and write it as a percentage value. Equivalent fractions calculator

Convert 0.1225 into equivalent fractions and write it as a percentage value

1. Write the number as a percentage.

  • Multiply the number by 100/100
  • Note: 100/100 = 1
  • The value of the number does not change when multiplying by 100/100

0.1225 =

0.1225 × 100/100 =

(0.1225 × 100)/100 =

12.25/100 =

12.25%


  • In other words:
  • Multiply the number by 100...
  • ... And then add the percent sign, %
  • 0.1225 = 12.25%

» Convert fractions to percentages, online calculator


2. Write the number as a proper fraction.

  • 0.1225 can be written as a proper fraction.
  • A proper fraction = the numerator is smaller than the denominator..

Write down the number divided by 1, as a fraction:

0.1225 = 0.1225/1


Turn the top number into a whole number.

  • Multiply both the top and the bottom by the same number.
  • This number is: 10,000.
  • 1 followed by as many 0-s as the number of digits after the decimal point.

0.1225/1 =

(0.1225 × 10,000)/(1 × 10,000) =

1,225/10,000


3. Reduce (simplify) the fraction above:
1,225/10,000
to the lowest terms, to its simplest equivalent form, irreducible.

To reduce a fraction to the lowest terms divide the numerator and denominator by their greatest (highest) common factor (divisor), GCF.


Factor the numerator and denominator (prime factorization).

1,225 = 52 × 72

10,000 = 24 × 54


» Prime factorization: break numbers down to prime factors, online calculator


Calculate the greatest (highest) common factor (divisor), GCF.

Multiply all the common prime factors by the lowest exponents.

GCF (52 × 72; 24 × 54) = 52


» Calculate the greatest (highest) common factor (divisor), GCF, online calculator


Divide both the numerator and the denominator by their GCF.

1,225/10,000 =

(52 × 72)/(24 × 54) =

((52 × 72) ÷ 52) / ((24 × 54) ÷ 52) =

72/(24 × 52) =

49/400


49/400 ~ Equivalent fractions.

  • The above fraction cannot be reduced.
  • That is, it has the smallest possible numerator and denominator.

  • By expanding it we can build up equivalent fractions.

  • Multiply the numerator & the denominator by the same number.


Example 1. By expanding the fraction by 5.

49/400 = (49 × 5)/(400 × 5) = 245/2,000

Example 2. By expanding the fraction by 9.

49/400 = (49 × 9)/(400 × 9) = 441/3,600

  • Of course, the above fractions are reducing...
  • ... to the initial fraction: 49/400

» Reduce fractions and write them as decimal numbers and percentages


:: Final answer ::
Written in 3 different ways

As a reduced (simplified) positive proper fraction:
0.1225 = 49/400

As a percentage:
0.1225 = 12.25%

As equivalent fractions:
0.1225 = 49/400 = 245/2,000 = 441/3,600

More operations of this kind

0.1226 = ? Convert the decimal number 0.1226. Turn it into a reduced (simplified) proper fraction and write it as a percentage. Calculate other equivalent fractions to the decimal number, by expanding

Decimal numbers to fractions and percentages, calculator

Learn how to turn a decimal number into a fraction and a percentage. Steps.

1. How to write the number as a percentage:

  • Multiply the number by 100. Then add the percent sign, %.

2. How to write the number as a fraction:

  • Write down the number divided by 1, as a fraction.
  • Turn the top number into a whole number: multiply both the top and the bottom by the same number.
  • Reduce (simplify) the above fraction to the lowest terms, to its simplest equivalent form, irreducible. To reduce a fraction divide the numerator and the denominator by their greatest (highest) common factor (divisor), GCF.
  • If the fraction is an improper one, rewrite it as a mixed number (mixed fraction).
  • Calculate equivalent fractions. By expanding it we can build up equivalent fractions: multiply the numerator & the denominator by the same number.

More on ordinary (common) fractions / theory: