Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
16,666,666,730/30,000,000,042
- The integer number above the bar is called numerator: 16,666,666,730
- The integer number below the bar is called denominator: 30,000,000,042
- 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 = 16,666,666,730 ÷ 30,000,000,042
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:
16,666,666,730 = 2 × 5 × 7 × 53 × 179 × 25,097
16,666,666,730 is a composite number.
Written with exponents:
30,000,000,042 = 2 × 3 × 3 × 461 × 3,615,329 = 2 × 32 × 461 × 3,615,329
30,000,000,042 is a composite number.
16,666,666,730/30,000,000,042 =
(16,666,666,730 ÷ 2) / (30,000,000,042 ÷ 2) =
8,333,333,365/15,000,000,021
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.
16,666,666,730/30,000,000,042 =
(2 × 5 × 7 × 53 × 179 × 25,097)/(2 × 32 × 461 × 3,615,329) =
((2 × 5 × 7 × 53 × 179 × 25,097) ÷ 2) / ((2 × 32 × 461 × 3,615,329) ÷ 2) =
(5 × 7 × 53 × 179 × 25,097)/(32 × 461 × 3,615,329) =
8,333,333,365/15,000,000,021
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
8,333,333,365/15,000,000,021 =
8,333,333,365 ÷ 15,000,000,021 =
0.555555556889 ≈
0.56