Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
16,666,666,746/30,000,000,020
- The integer number above the bar is called numerator: 16,666,666,746
- The integer number below the bar is called denominator: 30,000,000,020
- 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 = 16,666,666,746 ÷ 30,000,000,020
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:
16,666,666,746 = 2 × 3 × 379 × 7,329,229
16,666,666,746 is a composite number.
Written with exponents:
30,000,000,020 = 2 × 2 × 5 × 1,500,000,001 = 22 × 5 × 1,500,000,001
30,000,000,020 is a composite number.
16,666,666,746/30,000,000,020 =
(16,666,666,746 ÷ 2) / (30,000,000,020 ÷ 2) =
8,333,333,373/15,000,000,010
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.
16,666,666,746/30,000,000,020 =
(2 × 3 × 379 × 7,329,229)/(22 × 5 × 1,500,000,001) =
((2 × 3 × 379 × 7,329,229) ÷ 2) / ((22 × 5 × 1,500,000,001) ÷ 2) =
(3 × 379 × 7,329,229)/(2 × 5 × 1,500,000,001) =
8,333,333,373/15,000,000,010
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
8,333,333,373/15,000,000,010 =
8,333,333,373 ÷ 15,000,000,010 =
0.55555555783 ≈
0.56