Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,368/900,000,000,008
- The integer number above the bar is called numerator: 779,422,863,368
- The integer number below the bar is called denominator: 900,000,000,008
- 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 = 779,422,863,368 ÷ 900,000,000,008
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:
779,422,863,368 = 2 × 2 × 2 × 71 × 1,151 × 1,192,201 = 23 × 71 × 1,151 × 1,192,201
779,422,863,368 is a composite number.
Written with exponents:
900,000,000,008 = 2 × 2 × 2 × 709 × 3,467 × 45,767 = 23 × 709 × 3,467 × 45,767
900,000,000,008 is a composite number.
779,422,863,368/900,000,000,008 =
(779,422,863,368 ÷ 8) / (900,000,000,008 ÷ 8) =
97,427,857,921/112,500,000,001
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.
779,422,863,368/900,000,000,008 =
(23 × 71 × 1,151 × 1,192,201)/(23 × 709 × 3,467 × 45,767) =
((23 × 71 × 1,151 × 1,192,201) ÷ 23) / ((23 × 709 × 3,467 × 45,767) ÷ 23) =
(71 × 1,151 × 1,192,201)/(709 × 3,467 × 45,767) =
97,427,857,921/112,500,000,001
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
97,427,857,921/112,500,000,001 =
97,427,857,921 ÷ 112,500,000,001 =
0.866025403735 ≈
0.87