Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
1,010,101,032/3,999,999,998
- The integer number above the bar is called numerator: 1,010,101,032
- The integer number below the bar is called denominator: 3,999,999,998
- 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 = 1,010,101,032 ÷ 3,999,999,998
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:
1,010,101,032 = 2 × 2 × 2 × 3 × 3 × 1,709 × 8,209 = 23 × 32 × 1,709 × 8,209
1,010,101,032 is a composite number.
3,999,999,998 = 2 × 31 × 64,516,129
3,999,999,998 is a composite number.
1,010,101,032/3,999,999,998 =
(1,010,101,032 ÷ 2) / (3,999,999,998 ÷ 2) =
505,050,516/1,999,999,999
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.
1,010,101,032/3,999,999,998 =
(23 × 32 × 1,709 × 8,209)/(2 × 31 × 64,516,129) =
((23 × 32 × 1,709 × 8,209) ÷ 2) / ((2 × 31 × 64,516,129) ÷ 2) =
(22 × 32 × 1,709 × 8,209)/(31 × 64,516,129) =
505,050,516/1,999,999,999
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
505,050,516/1,999,999,999 =
505,050,516 ÷ 1,999,999,999 =
0.252525258126 ≈
0.25