Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
779,422,863,381/899,999,999,946
- The integer number above the bar is called numerator: 779,422,863,381
- The integer number below the bar is called denominator: 899,999,999,946
- 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 = 779,422,863,381 ÷ 899,999,999,946
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:
779,422,863,381 = 3 × 41 × 587 × 10,795,181
779,422,863,381 is a composite number.
Written with exponents:
899,999,999,946 = 2 × 3 × 3 × 19,009 × 2,630,333 = 2 × 32 × 19,009 × 2,630,333
899,999,999,946 is a composite number.
779,422,863,381/899,999,999,946 =
(779,422,863,381 ÷ 3) / (899,999,999,946 ÷ 3) =
259,807,621,127/299,999,999,982
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.
779,422,863,381/899,999,999,946 =
(3 × 41 × 587 × 10,795,181)/(2 × 32 × 19,009 × 2,630,333) =
((3 × 41 × 587 × 10,795,181) ÷ 3) / ((2 × 32 × 19,009 × 2,630,333) ÷ 3) =
(41 × 587 × 10,795,181)/(2 × 3 × 19,009 × 2,630,333) =
259,807,621,127/299,999,999,982
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
259,807,621,127/299,999,999,982 =
259,807,621,127 ÷ 299,999,999,982 =
0.866025403809 ≈
0.87