Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,415/900,000,000,032
- The integer number above the bar is called numerator: 779,422,863,415
- The integer number below the bar is called denominator: 900,000,000,032
- 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 = 779,422,863,415 ÷ 900,000,000,032
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:
779,422,863,415 = 5 × 7 × 37 × 601,870,937
779,422,863,415 is a composite number.
Written with exponents:
900,000,000,032 = 2 × 2 × 2 × 2 × 2 × 7 × 23 × 541 × 322,901 = 25 × 7 × 23 × 541 × 322,901
900,000,000,032 is a composite number.
779,422,863,415/900,000,000,032 =
(779,422,863,415 ÷ 7) / (900,000,000,032 ÷ 7) =
111,346,123,345/128,571,428,576
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.
779,422,863,415/900,000,000,032 =
(5 × 7 × 37 × 601,870,937)/(25 × 7 × 23 × 541 × 322,901) =
((5 × 7 × 37 × 601,870,937) ÷ 7) / ((25 × 7 × 23 × 541 × 322,901) ÷ 7) =
(5 × 37 × 601,870,937)/(25 × 23 × 541 × 322,901) =
111,346,123,345/128,571,428,576
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
111,346,123,345/128,571,428,576 =
111,346,123,345 ÷ 128,571,428,576 =
0.866025403764 ≈
0.87