Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
1,010,101,016/3,999,999,990
- The integer number above the bar is called numerator: 1,010,101,016
- The integer number below the bar is called denominator: 3,999,999,990
- 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 = 1,010,101,016 ÷ 3,999,999,990
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:
1,010,101,016 = 2 × 2 × 2 × 3,299 × 38,273 = 23 × 3,299 × 38,273
1,010,101,016 is a composite number.
3,999,999,990 = 2 × 3 × 5 × 7 × 59 × 113 × 2,857
3,999,999,990 is a composite number.
1,010,101,016/3,999,999,990 =
(1,010,101,016 ÷ 2) / (3,999,999,990 ÷ 2) =
505,050,508/1,999,999,995
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.
1,010,101,016/3,999,999,990 =
(23 × 3,299 × 38,273)/(2 × 3 × 5 × 7 × 59 × 113 × 2,857) =
((23 × 3,299 × 38,273) ÷ 2) / ((2 × 3 × 5 × 7 × 59 × 113 × 2,857) ÷ 2) =
(22 × 3,299 × 38,273)/(3 × 5 × 7 × 59 × 113 × 2,857) =
505,050,508/1,999,999,995
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
505,050,508/1,999,999,995 =
505,050,508 ÷ 1,999,999,995 =
0.252525254631 ≈
0.25