Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,775/150,000,000,015
- The integer number above the bar is called numerator: 18,147,557,775
- The integer number below the bar is called denominator: 150,000,000,015
- 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 = 18,147,557,775 ÷ 150,000,000,015
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:
18,147,557,775 = 3 × 5 × 5 × 59 × 1,721 × 2,383 = 3 × 52 × 59 × 1,721 × 2,383
18,147,557,775 is a composite number.
150,000,000,015 = 3 × 5 × 101 × 3,541 × 27,961
150,000,000,015 is a composite number.
18,147,557,775/150,000,000,015 =
(18,147,557,775 ÷ 15) / (150,000,000,015 ÷ 15) =
1,209,837,185/10,000,000,001
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.
18,147,557,775/150,000,000,015 =
(3 × 52 × 59 × 1,721 × 2,383)/(3 × 5 × 101 × 3,541 × 27,961) =
((3 × 52 × 59 × 1,721 × 2,383) ÷ (3 × 5)) / ((3 × 5 × 101 × 3,541 × 27,961) ÷ (3 × 5)) =
(5 × 59 × 1,721 × 2,383)/(101 × 3,541 × 27,961) =
1,209,837,185/10,000,000,001
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
1,209,837,185/10,000,000,001 =
1,209,837,185 ÷ 10,000,000,001 =
0.120983718488 ≈
0.12