Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,385/900,000,000,060
- The integer number above the bar is called numerator: 779,422,863,385
- The integer number below the bar is called denominator: 900,000,000,060
- 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 = 779,422,863,385 ÷ 900,000,000,060
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:
779,422,863,385 = 5 × 643 × 1,153 × 210,263
779,422,863,385 is a composite number.
Written with exponents:
900,000,000,060 = 2 × 2 × 3 × 5 × 7 × 7 × 306,122,449 = 22 × 3 × 5 × 72 × 306,122,449
900,000,000,060 is a composite number.
779,422,863,385/900,000,000,060 =
(779,422,863,385 ÷ 5) / (900,000,000,060 ÷ 5) =
155,884,572,677/180,000,000,012
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.
779,422,863,385/900,000,000,060 =
(5 × 643 × 1,153 × 210,263)/(22 × 3 × 5 × 72 × 306,122,449) =
((5 × 643 × 1,153 × 210,263) ÷ 5) / ((22 × 3 × 5 × 72 × 306,122,449) ÷ 5) =
(643 × 1,153 × 210,263)/(22 × 3 × 72 × 306,122,449) =
155,884,572,677/180,000,000,012
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
155,884,572,677/180,000,000,012 =
155,884,572,677 ÷ 180,000,000,012 =
0.866025403703 ≈
0.87