Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,785/150,000,000,045
- The integer number above the bar is called numerator: 18,147,557,785
- The integer number below the bar is called denominator: 150,000,000,045
- 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 = 18,147,557,785 ÷ 150,000,000,045
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:
18,147,557,785 = 5 × 7 × 518,501,651
18,147,557,785 is a composite number.
150,000,000,045 = 3 × 5 × 7 × 1,428,571,429
150,000,000,045 is a composite number.
18,147,557,785/150,000,000,045 =
(18,147,557,785 ÷ 35) / (150,000,000,045 ÷ 35) =
518,501,651/4,285,714,287
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.
18,147,557,785/150,000,000,045 =
(5 × 7 × 518,501,651)/(3 × 5 × 7 × 1,428,571,429) =
((5 × 7 × 518,501,651) ÷ (5 × 7)) / ((3 × 5 × 7 × 1,428,571,429) ÷ (5 × 7)) =
518,501,651/(3 × 1,428,571,429) =
518,501,651/4,285,714,287
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
518,501,651/4,285,714,287 =
518,501,651 ÷ 4,285,714,287 =
0.12098371853 ≈
0.12