Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,808/150,000,000,070
- The integer number above the bar is called numerator: 18,147,557,808
- The integer number below the bar is called denominator: 150,000,000,070
- 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 = 18,147,557,808 ÷ 150,000,000,070
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:
18,147,557,808 = 2 × 2 × 2 × 2 × 3 × 3 × 107 × 1,177,801 = 24 × 32 × 107 × 1,177,801
18,147,557,808 is a composite number.
150,000,000,070 = 2 × 5 × 15,000,000,007
150,000,000,070 is a composite number.
18,147,557,808/150,000,000,070 =
(18,147,557,808 ÷ 2) / (150,000,000,070 ÷ 2) =
9,073,778,904/75,000,000,035
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.
18,147,557,808/150,000,000,070 =
(24 × 32 × 107 × 1,177,801)/(2 × 5 × 15,000,000,007) =
((24 × 32 × 107 × 1,177,801) ÷ 2) / ((2 × 5 × 15,000,000,007) ÷ 2) =
(23 × 32 × 107 × 1,177,801)/(5 × 15,000,000,007) =
9,073,778,904/75,000,000,035
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
9,073,778,904/75,000,000,035 =
9,073,778,904 ÷ 75,000,000,035 =
0.120983718664 ≈
0.12