Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,333/899,999,999,975
- The integer number above the bar is called numerator: 779,422,863,333
- The integer number below the bar is called denominator: 899,999,999,975
- 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 = 779,422,863,333 ÷ 899,999,999,975
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:
779,422,863,333 = 3 × 53 × 4,902,030,587
779,422,863,333 is a composite number.
Written with exponents:
899,999,999,975 = 5 × 5 × 53 × 281 × 2,417,243 = 52 × 53 × 281 × 2,417,243
899,999,999,975 is a composite number.
779,422,863,333/899,999,999,975 =
(779,422,863,333 ÷ 53) / (899,999,999,975 ÷ 53) =
14,706,091,761/16,981,132,075
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.
779,422,863,333/899,999,999,975 =
(3 × 53 × 4,902,030,587)/(52 × 53 × 281 × 2,417,243) =
((3 × 53 × 4,902,030,587) ÷ 53) / ((52 × 53 × 281 × 2,417,243) ÷ 53) =
(3 × 4,902,030,587)/(52 × 281 × 2,417,243) =
14,706,091,761/16,981,132,075
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
14,706,091,761/16,981,132,075 =
14,706,091,761 ÷ 16,981,132,075 =
0.866025403727 ≈
0.87