Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
1,010,101,018/3,999,999,946
- The integer number above the bar is called numerator: 1,010,101,018
- The integer number below the bar is called denominator: 3,999,999,946
- 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 = 1,010,101,018 ÷ 3,999,999,946
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:
1,010,101,018 = 2 × 103 × 4,903,403
1,010,101,018 is a composite number.
3,999,999,946 = 2 × 1,999,999,973
3,999,999,946 is a composite number.
1,010,101,018/3,999,999,946 =
(1,010,101,018 ÷ 2) / (3,999,999,946 ÷ 2) =
505,050,509/1,999,999,973
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.
1,010,101,018/3,999,999,946 =
(2 × 103 × 4,903,403)/(2 × 1,999,999,973) =
((2 × 103 × 4,903,403) ÷ 2) / ((2 × 1,999,999,973) ÷ 2) =
(103 × 4,903,403)/1,999,999,973 =
505,050,509/1,999,999,973
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
505,050,509/1,999,999,973 =
505,050,509 ÷ 1,999,999,973 =
0.252525257909 ≈
0.25