Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,435/900,000,000,050
- The integer number above the bar is called numerator: 779,422,863,435
- The integer number below the bar is called denominator: 900,000,000,050
- 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 = 779,422,863,435 ÷ 900,000,000,050
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:
779,422,863,435 = 3 × 5 × 51,961,524,229
779,422,863,435 is a composite number.
Written with exponents:
900,000,000,050 = 2 × 5 × 5 × 18,000,000,001 = 2 × 52 × 18,000,000,001
900,000,000,050 is a composite number.
779,422,863,435/900,000,000,050 =
(779,422,863,435 ÷ 5) / (900,000,000,050 ÷ 5) =
155,884,572,687/180,000,000,010
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.
779,422,863,435/900,000,000,050 =
(3 × 5 × 51,961,524,229)/(2 × 52 × 18,000,000,001) =
((3 × 5 × 51,961,524,229) ÷ 5) / ((2 × 52 × 18,000,000,001) ÷ 5) =
(3 × 51,961,524,229)/(2 × 5 × 18,000,000,001) =
155,884,572,687/180,000,000,010
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
155,884,572,687/180,000,000,010 =
155,884,572,687 ÷ 180,000,000,010 =
0.866025403769 ≈
0.87