Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,882/150,000,000,136
- The integer number above the bar is called numerator: 18,147,557,882
- The integer number below the bar is called denominator: 150,000,000,136
- 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 = 18,147,557,882 ÷ 150,000,000,136
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:
18,147,557,882 = 2 × 29 × 312,888,929
18,147,557,882 is a composite number.
Written with exponents:
150,000,000,136 = 2 × 2 × 2 × 7 × 2,678,571,431 = 23 × 7 × 2,678,571,431
150,000,000,136 is a composite number.
18,147,557,882/150,000,000,136 =
(18,147,557,882 ÷ 2) / (150,000,000,136 ÷ 2) =
9,073,778,941/75,000,000,068
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.
18,147,557,882/150,000,000,136 =
(2 × 29 × 312,888,929)/(23 × 7 × 2,678,571,431) =
((2 × 29 × 312,888,929) ÷ 2) / ((23 × 7 × 2,678,571,431) ÷ 2) =
(29 × 312,888,929)/(22 × 7 × 2,678,571,431) =
9,073,778,941/75,000,000,068
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
9,073,778,941/75,000,000,068 =
9,073,778,941 ÷ 75,000,000,068 =
0.120983719104 ≈
0.12