Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
5,198,787,874/12,000,000,012
- The integer number above the bar is called numerator: 5,198,787,874
- The integer number below the bar is called denominator: 12,000,000,012
- 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 = 5,198,787,874 ÷ 12,000,000,012
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:
5,198,787,874 = 2 × 7 × 1,637 × 226,843
5,198,787,874 is a composite number.
Written with exponents:
12,000,000,012 = 2 × 2 × 3 × 7 × 11 × 13 × 19 × 52,579 = 22 × 3 × 7 × 11 × 13 × 19 × 52,579
12,000,000,012 is a composite number.
5,198,787,874/12,000,000,012 =
(5,198,787,874 ÷ 14) / (12,000,000,012 ÷ 14) =
371,341,991/857,142,858
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.
5,198,787,874/12,000,000,012 =
(2 × 7 × 1,637 × 226,843)/(22 × 3 × 7 × 11 × 13 × 19 × 52,579) =
((2 × 7 × 1,637 × 226,843) ÷ (2 × 7)) / ((22 × 3 × 7 × 11 × 13 × 19 × 52,579) ÷ (2 × 7)) =
(1,637 × 226,843)/(2 × 3 × 11 × 13 × 19 × 52,579) =
371,341,991/857,142,858
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
371,341,991/857,142,858 =
371,341,991 ÷ 857,142,858 =
0.4332323224 ≈
0.43