Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,856/150,000,000,099
- The integer number above the bar is called numerator: 18,147,557,856
- The integer number below the bar is called denominator: 150,000,000,099
- 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 = 18,147,557,856 ÷ 150,000,000,099
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:
18,147,557,856 = 2 × 2 × 2 × 2 × 2 × 3 × 19 × 53 × 131 × 1,433 = 25 × 3 × 19 × 53 × 131 × 1,433
18,147,557,856 is a composite number.
150,000,000,099 = 3 × 21,943 × 2,278,631
150,000,000,099 is a composite number.
18,147,557,856/150,000,000,099 =
(18,147,557,856 ÷ 3) / (150,000,000,099 ÷ 3) =
6,049,185,952/50,000,000,033
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.
18,147,557,856/150,000,000,099 =
(25 × 3 × 19 × 53 × 131 × 1,433)/(3 × 21,943 × 2,278,631) =
((25 × 3 × 19 × 53 × 131 × 1,433) ÷ 3) / ((3 × 21,943 × 2,278,631) ÷ 3) =
(25 × 19 × 53 × 131 × 1,433)/(21,943 × 2,278,631) =
6,049,185,952/50,000,000,033
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
6,049,185,952/50,000,000,033 =
6,049,185,952 ÷ 50,000,000,033 =
0.12098371896 ≈
0.12