Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
18,147,557,788/150,000,000,074
- The integer number above the bar is called numerator: 18,147,557,788
- The integer number below the bar is called denominator: 150,000,000,074
- 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 = 18,147,557,788 ÷ 150,000,000,074
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:
18,147,557,788 = 2 × 2 × 2,333 × 1,944,659 = 22 × 2,333 × 1,944,659
18,147,557,788 is a composite number.
150,000,000,074 = 2 × 19 × 23,593 × 167,311
150,000,000,074 is a composite number.
18,147,557,788/150,000,000,074 =
(18,147,557,788 ÷ 2) / (150,000,000,074 ÷ 2) =
9,073,778,894/75,000,000,037
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.
18,147,557,788/150,000,000,074 =
(22 × 2,333 × 1,944,659)/(2 × 19 × 23,593 × 167,311) =
((22 × 2,333 × 1,944,659) ÷ 2) / ((2 × 19 × 23,593 × 167,311) ÷ 2) =
(2 × 2,333 × 1,944,659)/(19 × 23,593 × 167,311) =
9,073,778,894/75,000,000,037
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
9,073,778,894/75,000,000,037 =
9,073,778,894 ÷ 75,000,000,037 =
0.120983718527 ≈
0.12