Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,892/150,000,000,135
- The integer number above the bar is called numerator: 18,147,557,892
- The integer number below the bar is called denominator: 150,000,000,135
- 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 = 18,147,557,892 ÷ 150,000,000,135
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:
18,147,557,892 = 2 × 2 × 3 × 2,347 × 644,353 = 22 × 3 × 2,347 × 644,353
18,147,557,892 is a composite number.
150,000,000,135 = 3 × 5 × 33,889 × 295,081
150,000,000,135 is a composite number.
18,147,557,892/150,000,000,135 =
(18,147,557,892 ÷ 3) / (150,000,000,135 ÷ 3) =
6,049,185,964/50,000,000,045
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.
18,147,557,892/150,000,000,135 =
(22 × 3 × 2,347 × 644,353)/(3 × 5 × 33,889 × 295,081) =
((22 × 3 × 2,347 × 644,353) ÷ 3) / ((3 × 5 × 33,889 × 295,081) ÷ 3) =
(22 × 2,347 × 644,353)/(5 × 33,889 × 295,081) =
6,049,185,964/50,000,000,045
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
6,049,185,964/50,000,000,045 =
6,049,185,964 ÷ 50,000,000,045 =
0.120983719171 ≈
0.12