Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
16,666,666,720/30,000,000,022
- The integer number above the bar is called numerator: 16,666,666,720
- The integer number below the bar is called denominator: 30,000,000,022
- 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 = 16,666,666,720 ÷ 30,000,000,022
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:
16,666,666,720 = 2 × 2 × 2 × 2 × 2 × 5 × 11 × 17 × 557,041 = 25 × 5 × 11 × 17 × 557,041
16,666,666,720 is a composite number.
30,000,000,022 = 2 × 109 × 137,614,679
30,000,000,022 is a composite number.
16,666,666,720/30,000,000,022 =
(16,666,666,720 ÷ 2) / (30,000,000,022 ÷ 2) =
8,333,333,360/15,000,000,011
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.
16,666,666,720/30,000,000,022 =
(25 × 5 × 11 × 17 × 557,041)/(2 × 109 × 137,614,679) =
((25 × 5 × 11 × 17 × 557,041) ÷ 2) / ((2 × 109 × 137,614,679) ÷ 2) =
(24 × 5 × 11 × 17 × 557,041)/(109 × 137,614,679) =
8,333,333,360/15,000,000,011
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
8,333,333,360/15,000,000,011 =
8,333,333,360 ÷ 15,000,000,011 =
0.555555556926 ≈
0.56