Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
10,666,666,566/19,999,999,870
- The integer number above the bar is called numerator: 10,666,666,566
- The integer number below the bar is called denominator: 19,999,999,870
- 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 = 10,666,666,566 ÷ 19,999,999,870
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:
10,666,666,566 = 2 × 3 × 3 × 401 × 1,477,787 = 2 × 32 × 401 × 1,477,787
10,666,666,566 is a composite number.
19,999,999,870 = 2 × 5 × 601 × 3,327,787
19,999,999,870 is a composite number.
10,666,666,566/19,999,999,870 =
(10,666,666,566 ÷ 2) / (19,999,999,870 ÷ 2) =
5,333,333,283/9,999,999,935
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.
10,666,666,566/19,999,999,870 =
(2 × 32 × 401 × 1,477,787)/(2 × 5 × 601 × 3,327,787) =
((2 × 32 × 401 × 1,477,787) ÷ 2) / ((2 × 5 × 601 × 3,327,787) ÷ 2) =
(32 × 401 × 1,477,787)/(5 × 601 × 3,327,787) =
5,333,333,283/9,999,999,935
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
5,333,333,283/9,999,999,935 =
5,333,333,283 ÷ 9,999,999,935 =
0.533333331767 ≈
0.53