Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
16,666,666,716/30,000,000,021
- The integer number above the bar is called numerator: 16,666,666,716
- The integer number below the bar is called denominator: 30,000,000,021
- 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 = 16,666,666,716 ÷ 30,000,000,021
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:
16,666,666,716 = 2 × 2 × 3 × 7 × 229 × 866,431 = 22 × 3 × 7 × 229 × 866,431
16,666,666,716 is a composite number.
30,000,000,021 = 3 × 23 × 2,293 × 189,613
30,000,000,021 is a composite number.
16,666,666,716/30,000,000,021 =
(16,666,666,716 ÷ 3) / (30,000,000,021 ÷ 3) =
5,555,555,572/10,000,000,007
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.
16,666,666,716/30,000,000,021 =
(22 × 3 × 7 × 229 × 866,431)/(3 × 23 × 2,293 × 189,613) =
((22 × 3 × 7 × 229 × 866,431) ÷ 3) / ((3 × 23 × 2,293 × 189,613) ÷ 3) =
(22 × 7 × 229 × 866,431)/(23 × 2,293 × 189,613) =
5,555,555,572/10,000,000,007
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
5,555,555,572/10,000,000,007 =
5,555,555,572 ÷ 10,000,000,007 =
0.555555556811 ≈
0.56