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:
5,689,602 = 2 × 3 × 3 × 3 × 3 × 3 × 23 × 509 = 2 × 35 × 23 × 509
5,689,602 is a composite number.
12,500,000,014 = 2 × 61,099 × 102,293
12,500,000,014 is a composite number.
5,689,602/12,500,000,014 =
(5,689,602 ÷ 2) / (12,500,000,014 ÷ 2) =
2,844,801/6,250,000,007
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.
5,689,602/12,500,000,014 =
(2 × 35 × 23 × 509)/(2 × 61,099 × 102,293) =
((2 × 35 × 23 × 509) ÷ 2) / ((2 × 61,099 × 102,293) ÷ 2) =
(35 × 23 × 509)/(61,099 × 102,293) =
2,844,801/6,250,000,007
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
2,844,801/6,250,000,007 =
2,844,801 ÷ 6,250,000,007 =
0.000455168159 ≈
0