Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,364/900,000,000,012
- The integer number above the bar is called numerator: 779,422,863,364
- The integer number below the bar is called denominator: 900,000,000,012
- 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 = 779,422,863,364 ÷ 900,000,000,012
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:
779,422,863,364 = 2 × 2 × 83 × 2,347,659,227 = 22 × 83 × 2,347,659,227
779,422,863,364 is a composite number.
Written with exponents:
900,000,000,012 = 2 × 2 × 3 × 75,000,000,001 = 22 × 3 × 75,000,000,001
900,000,000,012 is a composite number.
779,422,863,364/900,000,000,012 =
(779,422,863,364 ÷ 4) / (900,000,000,012 ÷ 4) =
194,855,715,841/225,000,000,003
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.
779,422,863,364/900,000,000,012 =
(22 × 83 × 2,347,659,227)/(22 × 3 × 75,000,000,001) =
((22 × 83 × 2,347,659,227) ÷ 22) / ((22 × 3 × 75,000,000,001) ÷ 22) =
(83 × 2,347,659,227)/(3 × 75,000,000,001) =
194,855,715,841/225,000,000,003
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
194,855,715,841/225,000,000,003 =
194,855,715,841 ÷ 225,000,000,003 =
0.866025403726 ≈
0.87