Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
16,666,666,752/30,000,000,030
- The integer number above the bar is called numerator: 16,666,666,752
- The integer number below the bar is called denominator: 30,000,000,030
- 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 = 16,666,666,752 ÷ 30,000,000,030
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:
16,666,666,752 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 21,701,389 = 28 × 3 × 21,701,389
16,666,666,752 is a composite number.
30,000,000,030 = 2 × 3 × 5 × 7 × 11 × 13 × 19 × 52,579
30,000,000,030 is a composite number.
16,666,666,752/30,000,000,030 =
(16,666,666,752 ÷ 6) / (30,000,000,030 ÷ 6) =
2,777,777,792/5,000,000,005
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.
16,666,666,752/30,000,000,030 =
(28 × 3 × 21,701,389)/(2 × 3 × 5 × 7 × 11 × 13 × 19 × 52,579) =
((28 × 3 × 21,701,389) ÷ (2 × 3)) / ((2 × 3 × 5 × 7 × 11 × 13 × 19 × 52,579) ÷ (2 × 3)) =
(27 × 21,701,389)/(5 × 7 × 11 × 13 × 19 × 52,579) =
2,777,777,792/5,000,000,005
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
2,777,777,792/5,000,000,005 =
2,777,777,792 ÷ 5,000,000,005 =
0.555555557844 ≈
0.56