To reduce a fraction to the lowest terms equivalent: divide the numerator and denominator by their greatest common factor, GCF
To calculate the greatest common factor, GCF:
- 1. Factor the numerator and the denominator (into prime factors), build their prime factorizations.
- 2. Multiply all their common prime factors, taken by the lowest exponents.
1. Factor the numerator and the denominator:
To factor a number (into prime factors) - or, in other words, to break it down to prime factors - or, in other words, to build its prime factorization: find the prime numbers that multiply together to get that number.
The prime factorizations:
Written with exponents:
291,666,667,025 = 5 × 5 × 11,666,666,681 = 52 × 11,666,666,681
291,666,667,025 is a composite number.
5 is a prime number, it cannot be factored (into other prime factors).
291,666,667,025/5 =
(291,666,667,025 ÷ 5) / (5 ÷ 5) =
58,333,333,405/1 =
58,333,333,405
* When it's 1, the denominator of the fraction can be omitted.
Yet another method to reduce the fraction
To reduce a fraction without calculating the GCF: factor its numerator and denominator, then all the common prime factors are easily identified and crossed out.
291,666,667,025/5 =
(52 × 11,666,666,681)/5 =
((52 × 11,666,666,681) ÷ 5) / (5 ÷ 5) =
(5 × 11,666,666,681)/1 =
(5 × 11,666,666,681) =
58,333,333,405
* When it's 1, the denominator of the fraction can be omitted.
As a positive improper fraction:
(the numerator > the denominator)
- The integer numbers are a particular case of those fractions that have a denominator equal to 1.
- Any integer number 'n' can be written as a fraction with a denominator of 1. Starting from here, by multiplying both the numerator and the denominator by the same number, an integer number can be written as a multitude of equivalent fractions:
- n = n/1 = (2 × n)/2 = (3 × n)/3 = ...
- Example: 3 = 3/1 = (2 × 3)/2 = 6/2 = (3 × 3)/3 = 9/3 = ...
58,333,333,405 = 58,333,333,405/1
As a percentage:
- A percentage value p% is equal to the fraction: p/100, for any decimal number p. So, we need to change the form of the number calculated above, to show a denominator of 100.
- To do that, multiply the number by the fraction 100/100.
- The value of the fraction 100/100 = 1, so by multiplying the number by this fraction the result is not changing, only the form.
58,333,333,405 =
58,333,333,405 × 100/100 =
(58,333,333,405 × 100)/100 =
5,833,333,340,500/100 =
5,833,333,340,500%
- In other words:
- (1) Calculate the fraction's value, (2) multiply that number by 100, and (3) add the percent sign % to it.
The final answer:
written in three ways