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:
32,296,263 = 3 × 10,765,421
32,296,263 is a composite number.
400,000,017 = 3 × 2,677 × 49,807
400,000,017 is a composite number.
32,296,263/400,000,017 =
(32,296,263 ÷ 3) / (400,000,017 ÷ 3) =
10,765,421/133,333,339
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.
32,296,263/400,000,017 =
(3 × 10,765,421)/(3 × 2,677 × 49,807) =
((3 × 10,765,421) ÷ 3) / ((3 × 2,677 × 49,807) ÷ 3) =
10,765,421/(2,677 × 49,807) =
10,765,421/133,333,339
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
10,765,421/133,333,339 =
10,765,421 ÷ 133,333,339 =
0.080740654069 ≈
0.08