Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,454/900,000,000,052
- The integer number above the bar is called numerator: 779,422,863,454
- The integer number below the bar is called denominator: 900,000,000,052
- 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 = 779,422,863,454 ÷ 900,000,000,052
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:
779,422,863,454 = 2 × 101 × 3,858,529,027
779,422,863,454 is a composite number.
Written with exponents:
900,000,000,052 = 2 × 2 × 73 × 97 × 31,775,173 = 22 × 73 × 97 × 31,775,173
900,000,000,052 is a composite number.
779,422,863,454/900,000,000,052 =
(779,422,863,454 ÷ 2) / (900,000,000,052 ÷ 2) =
389,711,431,727/450,000,000,026
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.
779,422,863,454/900,000,000,052 =
(2 × 101 × 3,858,529,027)/(22 × 73 × 97 × 31,775,173) =
((2 × 101 × 3,858,529,027) ÷ 2) / ((22 × 73 × 97 × 31,775,173) ÷ 2) =
(101 × 3,858,529,027)/(2 × 73 × 97 × 31,775,173) =
389,711,431,727/450,000,000,026
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
389,711,431,727/450,000,000,026 =
389,711,431,727 ÷ 450,000,000,026 =
0.866025403788 ≈
0.87