Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,907/150,000,000,075
- The integer number above the bar is called numerator: 18,147,557,907
- The integer number below the bar is called denominator: 150,000,000,075
- 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 = 18,147,557,907 ÷ 150,000,000,075
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:
18,147,557,907 = 3 × 3 × 1,583 × 1,273,781 = 32 × 1,583 × 1,273,781
18,147,557,907 is a composite number.
Written with exponents:
150,000,000,075 = 3 × 3 × 5 × 5 × 666,666,667 = 32 × 52 × 666,666,667
150,000,000,075 is a composite number.
18,147,557,907/150,000,000,075 =
(18,147,557,907 ÷ 9) / (150,000,000,075 ÷ 9) =
2,016,395,323/16,666,666,675
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.
18,147,557,907/150,000,000,075 =
(32 × 1,583 × 1,273,781)/(32 × 52 × 666,666,667) =
((32 × 1,583 × 1,273,781) ÷ 32) / ((32 × 52 × 666,666,667) ÷ 32) =
(1,583 × 1,273,781)/(52 × 666,666,667) =
2,016,395,323/16,666,666,675
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
2,016,395,323/16,666,666,675 =
2,016,395,323 ÷ 16,666,666,675 =
0.12098371932 ≈
0.12