Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
5,111,111,047/20,000,000,041
- The integer number above the bar is called numerator: 5,111,111,047
- The integer number below the bar is called denominator: 20,000,000,041
- 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 = 5,111,111,047 ÷ 20,000,000,041
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:
5,111,111,047 = 7 × 17 × 179 × 239,947
5,111,111,047 is a composite number.
20,000,000,041 = 7 × 2,857,142,863
20,000,000,041 is a composite number.
5,111,111,047/20,000,000,041 =
(5,111,111,047 ÷ 7) / (20,000,000,041 ÷ 7) =
730,158,721/2,857,142,863
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.
5,111,111,047/20,000,000,041 =
(7 × 17 × 179 × 239,947)/(7 × 2,857,142,863) =
((7 × 17 × 179 × 239,947) ÷ 7) / ((7 × 2,857,142,863) ÷ 7) =
(17 × 179 × 239,947)/2,857,142,863 =
730,158,721/2,857,142,863
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
730,158,721/2,857,142,863 =
730,158,721 ÷ 2,857,142,863 =
0.255555551826 ≈
0.26