Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
10,666,666,652/20,000,000,002
- The integer number above the bar is called numerator: 10,666,666,652
- The integer number below the bar is called denominator: 20,000,000,002
- The fraction bar means that the numerator is divided by the denominator.
- To get the fraction's value divide the numerator by the denominator:
The value = 10,666,666,652 ÷ 20,000,000,002
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:
10,666,666,652 = 2 × 2 × 19 × 197 × 491 × 1,451 = 22 × 19 × 197 × 491 × 1,451
10,666,666,652 is a composite number.
20,000,000,002 = 2 × 101 × 3,541 × 27,961
20,000,000,002 is a composite number.
10,666,666,652/20,000,000,002 =
(10,666,666,652 ÷ 2) / (20,000,000,002 ÷ 2) =
5,333,333,326/10,000,000,001
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.
10,666,666,652/20,000,000,002 =
(22 × 19 × 197 × 491 × 1,451)/(2 × 101 × 3,541 × 27,961) =
((22 × 19 × 197 × 491 × 1,451) ÷ 2) / ((2 × 101 × 3,541 × 27,961) ÷ 2) =
(2 × 19 × 197 × 491 × 1,451)/(101 × 3,541 × 27,961) =
5,333,333,326/10,000,000,001
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
5,333,333,326/10,000,000,001 =
5,333,333,326 ÷ 10,000,000,001 =
0.533333332547 ≈
0.53