459/21 Simplified

Learn how to find what is 459/21 simplified as a fraction just in a few minutes. We have covered why the greatest common divisor or factorization is important to simplify 459/21 in simplest form.

To simplify 459/21 in its lowest terms, you must be familiar with either how to find the greatest common divisor or prime factors. Both of these methods are used to recognize if 459/21 can be reduced in simplest form. In this case, the greatest common divisor of 459 and 21 is 3. Dividing both the numerator and denominator by GCD, the fraction 459/21 becomes 153/7 which is the simplest form.

Simplify 459/21 as a Fraction
Using Factorization:
459/21 = (?)
459/21 = (3 x 3 x 3 x 17)/(3 x 7)      //write 459/21 in terms of factors
= 153/7
459/21 = 153/7
459/21 simplified is 153/7

Using GCD:
459/21 = (?)
GCD of 459 and 21 is 3.
459/21 = (459/3)/(21/3)
= 153/7
459/21 = 153/7
459/21 simplified is 153/7 in fraction form
where,
459/21 is the given fraction to be simplified,
153/7 is the lowest term of 459/21.

Notes: Simplify 459/21 in lowest terms
1. 459/21 can be simplified only if the GCD of numerator and denominator is greater than 1. In this case, the GCD of 459 and 21 is 3 which is the greatest factor that evenly divides both numerator and denominator, so this fraction 459/21 can be represented in its reduced form.
2. On the other hand, you can also reduce 459/21 in simplest form by using the factorization method. In this case, the numerator and denominator of fraction should be written in the form of prime factors, so the fraction 459/21 becomes (3 x 3 x 3 x 17)/(3 x 7). Now you can check and cancel the factors if any factors of numerator and denominator cancel each other to simplify 459/21 in its lowest terms.

step 1 Observe the input parameters and what to be found:
Input values:
Fraction = 459/21

what to be found:
459/21 = ?
Simplify 459/21 in lowest terms.

step 2 Find the prime factors of the numerator of given fraction 459/21.
Prime factors of 459 = 3 x 3 x 3 x 17

step 3 Find the prime factors of the denominator of given fraction 459/21.
Prime factors of 21 = 3 x 7

step 4 Rewrite the fraction 459/21 in the form of prime factors as like the below:
459/21= (3 x 3 x 3 x 17) / (3 x 7)

step 5 Check and reduce the factors of 459 and 21 if any factors in the numerator and denominator cancel each other:
= (3 x 3 x 3 x 17) / (3 x 7)
= ( 3 x 3 x 17)/( 7)
459/21 = 153/7

Hence,
459/21 in simplest form is 153/7.

Representing fraction 459/21 in lowest terms is a better way than its original form to easily recognize the fraction or use in mathematical operations. Simplify fraction involves finding the greatest common factor or factorization. Recognizing the GCD or prime factors of numerator and denominator of a fraction is key when you start reducing fractions like 459/21 in its lowest terms.