Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,422/900,000,000,007
- The integer number above the bar is called numerator: 779,422,863,422
- The integer number below the bar is called denominator: 900,000,000,007
- 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 = 779,422,863,422 ÷ 900,000,000,007
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:
779,422,863,422 = 2 × 7 × 41 × 67 × 2,081 × 9,739
779,422,863,422 is a composite number.
900,000,000,007 = 17 × 19 × 67 × 449 × 92,623
900,000,000,007 is a composite number.
779,422,863,422/900,000,000,007 =
(779,422,863,422 ÷ 67) / (900,000,000,007 ÷ 67) =
11,633,177,066/13,432,835,821
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.
779,422,863,422/900,000,000,007 =
(2 × 7 × 41 × 67 × 2,081 × 9,739)/(17 × 19 × 67 × 449 × 92,623) =
((2 × 7 × 41 × 67 × 2,081 × 9,739) ÷ 67) / ((17 × 19 × 67 × 449 × 92,623) ÷ 67) =
(2 × 7 × 41 × 2,081 × 9,739)/(17 × 19 × 449 × 92,623) =
11,633,177,066/13,432,835,821
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
11,633,177,066/13,432,835,821 =
11,633,177,066 ÷ 13,432,835,821 =
0.866025403795 ≈
0.87