Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,864/150,000,000,112
- The integer number above the bar is called numerator: 18,147,557,864
- The integer number below the bar is called denominator: 150,000,000,112
- 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 = 18,147,557,864 ÷ 150,000,000,112
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:
18,147,557,864 = 2 × 2 × 2 × 2,137 × 1,061,509 = 23 × 2,137 × 1,061,509
18,147,557,864 is a composite number.
Written with exponents:
150,000,000,112 = 2 × 2 × 2 × 2 × 19 × 1,621 × 304,393 = 24 × 19 × 1,621 × 304,393
150,000,000,112 is a composite number.
18,147,557,864/150,000,000,112 =
(18,147,557,864 ÷ 8) / (150,000,000,112 ÷ 8) =
2,268,444,733/18,750,000,014
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.
18,147,557,864/150,000,000,112 =
(23 × 2,137 × 1,061,509)/(24 × 19 × 1,621 × 304,393) =
((23 × 2,137 × 1,061,509) ÷ 23) / ((24 × 19 × 1,621 × 304,393) ÷ 23) =
(2,137 × 1,061,509)/(2 × 19 × 1,621 × 304,393) =
2,268,444,733/18,750,000,014
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
2,268,444,733/18,750,000,014 =
2,268,444,733 ÷ 18,750,000,014 =
0.120983719003 ≈
0.12