Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,913/150,000,000,072
- The integer number above the bar is called numerator: 18,147,557,913
- The integer number below the bar is called denominator: 150,000,000,072
- 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 = 18,147,557,913 ÷ 150,000,000,072
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:
18,147,557,913 = 3 × 19 × 109 × 2,920,901
18,147,557,913 is a composite number.
Written with exponents:
150,000,000,072 = 2 × 2 × 2 × 3 × 13 × 17 × 37 × 764,339 = 23 × 3 × 13 × 17 × 37 × 764,339
150,000,000,072 is a composite number.
18,147,557,913/150,000,000,072 =
(18,147,557,913 ÷ 3) / (150,000,000,072 ÷ 3) =
6,049,185,971/50,000,000,024
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.
18,147,557,913/150,000,000,072 =
(3 × 19 × 109 × 2,920,901)/(23 × 3 × 13 × 17 × 37 × 764,339) =
((3 × 19 × 109 × 2,920,901) ÷ 3) / ((23 × 3 × 13 × 17 × 37 × 764,339) ÷ 3) =
(19 × 109 × 2,920,901)/(23 × 13 × 17 × 37 × 764,339) =
6,049,185,971/50,000,000,024
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
6,049,185,971/50,000,000,024 =
6,049,185,971 ÷ 50,000,000,024 =
0.120983719362 ≈
0.12