Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,810/150,000,000,085
- The integer number above the bar is called numerator: 18,147,557,810
- The integer number below the bar is called denominator: 150,000,000,085
- 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 = 18,147,557,810 ÷ 150,000,000,085
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:
18,147,557,810 = 2 × 5 × 149 × 373 × 32,653
18,147,557,810 is a composite number.
Written with exponents:
150,000,000,085 = 5 × 13 × 13 × 43 × 4,128,251 = 5 × 132 × 43 × 4,128,251
150,000,000,085 is a composite number.
18,147,557,810/150,000,000,085 =
(18,147,557,810 ÷ 5) / (150,000,000,085 ÷ 5) =
3,629,511,562/30,000,000,017
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.
18,147,557,810/150,000,000,085 =
(2 × 5 × 149 × 373 × 32,653)/(5 × 132 × 43 × 4,128,251) =
((2 × 5 × 149 × 373 × 32,653) ÷ 5) / ((5 × 132 × 43 × 4,128,251) ÷ 5) =
(2 × 149 × 373 × 32,653)/(132 × 43 × 4,128,251) =
3,629,511,562/30,000,000,017
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
3,629,511,562/30,000,000,017 =
3,629,511,562 ÷ 30,000,000,017 =
0.120983718665 ≈
0.12