7/21 Simplified

Learn how to find what is 7/21 simplified as a fraction just in a few minutes. We have covered why the GCF or factorization is important to simplify 7/21 in simplest form.

To reduce 7/21 in its lowest terms, you must be familiar with either how to find the greatest common factor or prime factors. Both of these methods are used to recognize if 7/21 can be reduced in simplest form. In this case, the (greatest common factor) GDF of 7 and 21 is 7. Dividing both the numerator and denominator by GCF, the fraction 7/21 becomes 1/3 which is the simplest form.

7/21 Simplified as a Fraction
Using Factorization:
7/21 = (?)
7/21 = (7)/(3 x 7)      write 7/21 in terms of factors
= 1/3
7/21 = 1/3
7/21 simplified is 1/3

Using GCF
7/21 = (?)
GCF of 7 and 21 is 7.
7/21 = (7/7)/(21/7)
= 1/3
7/21 = 1/3
7/21 simplified is 1/3 in fraction form
where,
7/21 is the given fraction to be simplified,
1/3 is the lowest term of 7/21.

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

step 1 Observe the input parameters and what to be found:
Input values:
Fraction = 7/21

what to be found:
7/21 = ?
Reduce 7/21 in lowest terms.

step 2 Find the prime factors of the numerator of given fraction 7/21.
Prime factors of 7 = 7

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

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

step 5 Check and reduce the factors of 7 and 21 if any factors in the numerator and denominator cancel each other:
= (7) / (3 x 7)
= (1)/(3 )
7/21 = 1/3
Hence,
7/21 in simplest form is 1/3.

7/21 simplified is 1/3, representing fraction in lowest terms is a better way than its original form, to easily recognize the fraction or use in mathematical operations. Simplifying 7/21 to its simplest form involves the greatest common factor or factorization. Recognizing the GCF or prime factors of numerator and denominator of a fraction is key when you start reducing fractions like 7/21 in its lowest terms.