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:
333,542 = 2 × 11 × 15,161
333,542 is a composite number.
11 is a prime number, it cannot be factored (into other prime factors).
333,542/11 =
(333,542 ÷ 11) / (11 ÷ 11) =
30,322/1 =
30,322
* When it's 1, the denominator of the fraction can be omitted.
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.
333,542/11 =
(2 × 11 × 15,161)/11 =
((2 × 11 × 15,161) ÷ 11) / (11 ÷ 11) =
(2 × 15,161)/1 =
(2 × 15,161) =
30,322
* When it's 1, the denominator of the fraction can be omitted.
As a percentage:
- A percentage value p% is equal to the fraction: p/100, for any decimal number p. So, we need to change the form of the number calculated above, to show a denominator of 100.
- To do that, multiply the number by the fraction 100/100.
- The value of the fraction 100/100 = 1, so by multiplying the number by this fraction the result is not changing, only the form.
30,322 =
30,322 × 100/100 =
(30,322 × 100)/100 =
3,032,200/100 =
3,032,200%
- In other words:
- (1) Calculate the fraction's value, (2) multiply that number by 100, and (3) add the percent sign % to it.
The final answer:
written in three ways