Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,870/150,000,000,056
- The integer number above the bar is called numerator: 18,147,557,870
- The integer number below the bar is called denominator: 150,000,000,056
- 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 = 18,147,557,870 ÷ 150,000,000,056
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:
18,147,557,870 = 2 × 5 × 13 × 241 × 579,239
18,147,557,870 is a composite number.
Written with exponents:
150,000,000,056 = 2 × 2 × 2 × 18,750,000,007 = 23 × 18,750,000,007
150,000,000,056 is a composite number.
18,147,557,870/150,000,000,056 =
(18,147,557,870 ÷ 2) / (150,000,000,056 ÷ 2) =
9,073,778,935/75,000,000,028
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.
18,147,557,870/150,000,000,056 =
(2 × 5 × 13 × 241 × 579,239)/(23 × 18,750,000,007) =
((2 × 5 × 13 × 241 × 579,239) ÷ 2) / ((23 × 18,750,000,007) ÷ 2) =
(5 × 13 × 241 × 579,239)/(22 × 18,750,000,007) =
9,073,778,935/75,000,000,028
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
9,073,778,935/75,000,000,028 =
9,073,778,935 ÷ 75,000,000,028 =
0.120983719088 ≈
0.12