Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,875/150,000,000,035
- The integer number above the bar is called numerator: 18,147,557,875
- The integer number below the bar is called denominator: 150,000,000,035
- 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 = 18,147,557,875 ÷ 150,000,000,035
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:
18,147,557,875 = 5 × 5 × 5 × 19 × 7,641,077 = 53 × 19 × 7,641,077
18,147,557,875 is a composite number.
150,000,000,035 = 5 × 37 × 810,810,811
150,000,000,035 is a composite number.
18,147,557,875/150,000,000,035 =
(18,147,557,875 ÷ 5) / (150,000,000,035 ÷ 5) =
3,629,511,575/30,000,000,007
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.
18,147,557,875/150,000,000,035 =
(53 × 19 × 7,641,077)/(5 × 37 × 810,810,811) =
((53 × 19 × 7,641,077) ÷ 5) / ((5 × 37 × 810,810,811) ÷ 5) =
(52 × 19 × 7,641,077)/(37 × 810,810,811) =
3,629,511,575/30,000,000,007
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
3,629,511,575/30,000,000,007 =
3,629,511,575 ÷ 30,000,000,007 =
0.120983719138 ≈
0.12