Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
366,666,662/2,999,999,990
- The integer number above the bar is called numerator: 366,666,662
- The integer number below the bar is called denominator: 2,999,999,990
- 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 = 366,666,662 ÷ 2,999,999,990
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:
366,666,662 = 2 × 29 × 2,351 × 2,689
366,666,662 is a composite number.
2,999,999,990 = 2 × 5 × 13 × 23,076,923
2,999,999,990 is a composite number.
366,666,662/2,999,999,990 =
(366,666,662 ÷ 2) / (2,999,999,990 ÷ 2) =
183,333,331/1,499,999,995
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.
366,666,662/2,999,999,990 =
(2 × 29 × 2,351 × 2,689)/(2 × 5 × 13 × 23,076,923) =
((2 × 29 × 2,351 × 2,689) ÷ 2) / ((2 × 5 × 13 × 23,076,923) ÷ 2) =
(29 × 2,351 × 2,689)/(5 × 13 × 23,076,923) =
183,333,331/1,499,999,995
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
183,333,331/1,499,999,995 =
183,333,331 ÷ 1,499,999,995 =
0.122222221074 ≈
0.12