Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,341/899,999,999,988
- The integer number above the bar is called numerator: 779,422,863,341
- The integer number below the bar is called denominator: 899,999,999,988
- 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 = 779,422,863,341 ÷ 899,999,999,988
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:
779,422,863,341 = 31 × 37 × 10,739 × 63,277
779,422,863,341 is a composite number.
Written with exponents:
899,999,999,988 = 2 × 2 × 3 × 19 × 37 × 106,685,633 = 22 × 3 × 19 × 37 × 106,685,633
899,999,999,988 is a composite number.
779,422,863,341/899,999,999,988 =
(779,422,863,341 ÷ 37) / (899,999,999,988 ÷ 37) =
21,065,482,793/24,324,324,324
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.
779,422,863,341/899,999,999,988 =
(31 × 37 × 10,739 × 63,277)/(22 × 3 × 19 × 37 × 106,685,633) =
((31 × 37 × 10,739 × 63,277) ÷ 37) / ((22 × 3 × 19 × 37 × 106,685,633) ÷ 37) =
(31 × 10,739 × 63,277)/(22 × 3 × 19 × 106,685,633) =
21,065,482,793/24,324,324,324
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
21,065,482,793/24,324,324,324 =
21,065,482,793 ÷ 24,324,324,324 =
0.866025403724 ≈
0.87