Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,764/150,000,000,014
- The integer number above the bar is called numerator: 18,147,557,764
- The integer number below the bar is called denominator: 150,000,000,014
- 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 = 18,147,557,764 ÷ 150,000,000,014
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:
18,147,557,764 = 2 × 2 × 7 × 648,127,063 = 22 × 7 × 648,127,063
18,147,557,764 is a composite number.
150,000,000,014 = 2 × 47 × 211 × 7,562,771
150,000,000,014 is a composite number.
18,147,557,764/150,000,000,014 =
(18,147,557,764 ÷ 2) / (150,000,000,014 ÷ 2) =
9,073,778,882/75,000,000,007
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.
18,147,557,764/150,000,000,014 =
(22 × 7 × 648,127,063)/(2 × 47 × 211 × 7,562,771) =
((22 × 7 × 648,127,063) ÷ 2) / ((2 × 47 × 211 × 7,562,771) ÷ 2) =
(2 × 7 × 648,127,063)/(47 × 211 × 7,562,771) =
9,073,778,882/75,000,000,007
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
9,073,778,882/75,000,000,007 =
9,073,778,882 ÷ 75,000,000,007 =
0.120983718415 ≈
0.12