Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
5,000,000,006/30,000,000,010
- The integer number above the bar is called numerator: 5,000,000,006
- The integer number below the bar is called denominator: 30,000,000,010
- 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 = 5,000,000,006 ÷ 30,000,000,010
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:
5,000,000,006 = 2 × 4,933 × 506,791
5,000,000,006 is a composite number.
30,000,000,010 = 2 × 5 × 7,589 × 395,309
30,000,000,010 is a composite number.
5,000,000,006/30,000,000,010 =
(5,000,000,006 ÷ 2) / (30,000,000,010 ÷ 2) =
2,500,000,003/15,000,000,005
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.
5,000,000,006/30,000,000,010 =
(2 × 4,933 × 506,791)/(2 × 5 × 7,589 × 395,309) =
((2 × 4,933 × 506,791) ÷ 2) / ((2 × 5 × 7,589 × 395,309) ÷ 2) =
(4,933 × 506,791)/(5 × 7,589 × 395,309) =
2,500,000,003/15,000,000,005
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
2,500,000,003/15,000,000,005 =
2,500,000,003 ÷ 15,000,000,005 =
0.166666666811 ≈
0.17