Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,372/900,000,000,046
- The integer number above the bar is called numerator: 779,422,863,372
- The integer number below the bar is called denominator: 900,000,000,046
- 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 = 779,422,863,372 ÷ 900,000,000,046
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:
779,422,863,372 = 2 × 2 × 3 × 31 × 251 × 8,347,501 = 22 × 3 × 31 × 251 × 8,347,501
779,422,863,372 is a composite number.
900,000,000,046 = 2 × 7 × 31 × 18,583 × 111,593
900,000,000,046 is a composite number.
779,422,863,372/900,000,000,046 =
(779,422,863,372 ÷ 62) / (900,000,000,046 ÷ 62) =
12,571,336,506/14,516,129,033
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.
779,422,863,372/900,000,000,046 =
(22 × 3 × 31 × 251 × 8,347,501)/(2 × 7 × 31 × 18,583 × 111,593) =
((22 × 3 × 31 × 251 × 8,347,501) ÷ (2 × 31)) / ((2 × 7 × 31 × 18,583 × 111,593) ÷ (2 × 31)) =
(2 × 3 × 251 × 8,347,501)/(7 × 18,583 × 111,593) =
12,571,336,506/14,516,129,033
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
12,571,336,506/14,516,129,033 =
12,571,336,506 ÷ 14,516,129,033 =
0.866025403702 ≈
0.87