Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,895/150,000,000,060
- The integer number above the bar is called numerator: 18,147,557,895
- The integer number below the bar is called denominator: 150,000,000,060
- 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 = 18,147,557,895 ÷ 150,000,000,060
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:
18,147,557,895 = 3 × 5 × 179 × 6,758,867
18,147,557,895 is a composite number.
Written with exponents:
150,000,000,060 = 2 × 2 × 3 × 5 × 2,500,000,001 = 22 × 3 × 5 × 2,500,000,001
150,000,000,060 is a composite number.
18,147,557,895/150,000,000,060 =
(18,147,557,895 ÷ 15) / (150,000,000,060 ÷ 15) =
1,209,837,193/10,000,000,004
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.
18,147,557,895/150,000,000,060 =
(3 × 5 × 179 × 6,758,867)/(22 × 3 × 5 × 2,500,000,001) =
((3 × 5 × 179 × 6,758,867) ÷ (3 × 5)) / ((22 × 3 × 5 × 2,500,000,001) ÷ (3 × 5)) =
(179 × 6,758,867)/(22 × 2,500,000,001) =
1,209,837,193/10,000,000,004
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
1,209,837,193/10,000,000,004 =
1,209,837,193 ÷ 10,000,000,004 =
0.120983719252 ≈
0.12