Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
16,666,666,709/30,000,000,023
- The integer number above the bar is called numerator: 16,666,666,709
- The integer number below the bar is called denominator: 30,000,000,023
- 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 = 16,666,666,709 ÷ 30,000,000,023
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:
16,666,666,709 = 7 × 11 × 23 × 9,410,879
16,666,666,709 is a composite number.
30,000,000,023 = 7 × 4,285,714,289
30,000,000,023 is a composite number.
16,666,666,709/30,000,000,023 =
(16,666,666,709 ÷ 7) / (30,000,000,023 ÷ 7) =
2,380,952,387/4,285,714,289
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.
16,666,666,709/30,000,000,023 =
(7 × 11 × 23 × 9,410,879)/(7 × 4,285,714,289) =
((7 × 11 × 23 × 9,410,879) ÷ 7) / ((7 × 4,285,714,289) ÷ 7) =
(11 × 23 × 9,410,879)/4,285,714,289 =
2,380,952,387/4,285,714,289
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
2,380,952,387/4,285,714,289 =
2,380,952,387 ÷ 4,285,714,289 =
0.555555556541 ≈
0.56