Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,838/150,000,000,036
- The integer number above the bar is called numerator: 18,147,557,838
- The integer number below the bar is called denominator: 150,000,000,036
- 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 = 18,147,557,838 ÷ 150,000,000,036
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:
18,147,557,838 = 2 × 3 × 79 × 38,285,987
18,147,557,838 is a composite number.
Written with exponents:
150,000,000,036 = 2 × 2 × 3 × 19 × 23 × 28,604,119 = 22 × 3 × 19 × 23 × 28,604,119
150,000,000,036 is a composite number.
18,147,557,838/150,000,000,036 =
(18,147,557,838 ÷ 6) / (150,000,000,036 ÷ 6) =
3,024,592,973/25,000,000,006
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.
18,147,557,838/150,000,000,036 =
(2 × 3 × 79 × 38,285,987)/(22 × 3 × 19 × 23 × 28,604,119) =
((2 × 3 × 79 × 38,285,987) ÷ (2 × 3)) / ((22 × 3 × 19 × 23 × 28,604,119) ÷ (2 × 3)) =
(79 × 38,285,987)/(2 × 19 × 23 × 28,604,119) =
3,024,592,973/25,000,000,006
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
3,024,592,973/25,000,000,006 =
3,024,592,973 ÷ 25,000,000,006 =
0.120983718891 ≈
0.12