How To Reduce (Simplify) the Fraction?
- To reduce (simplify) a fraction to its lowest terms, divide the numerator and the denominator of the fraction by their greatest common factor, gcf (also called the highest common factor, hcf, or the greatest common divisor, gcd).
- To calculate the greatest (highest) common factor (divisor), gcf (hcf, gcd), we perform the prime factorization of the two numbers.
The prime factorization of the two numbers
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,041 = 3 × 347
1,041 is not a prime number but a composite one.
347 is a prime number and cannot be broken down into other prime factors.
- The natural numbers that are only divisible by 1 and themselves are called prime numbers. A prime number has exactly two factors: 1 and itself.
- A composite number is a natural number that has at least one other factor than 1 and itself.
Calculate the greatest (highest) common factor (divisor), gcf (hcf, gcd):
Multiply all the common prime factors, taken by their smallest exponents (powers).
gcf, hcf, gcd (1,041; 347) = 347
Divide the numerator and the denominator of the fraction by their greatest (highest) common factor (divisor), gcf (hcf, gcd).
1,041/347 =
(3 × 347)/347 =
((3 × 347) ÷ 347) / (347 ÷ 347) =
3/1 =
(If the denominator is 1, it can be omitted)
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