18/21 simplified in lowest terms provides the detailed information of what is the simplest form of 18/21, and the answer with steps help students to understand how to simplify the fraction in reduced form.

**Simplify 18/21 in Lowest Terms**

18/21 = (?)

18/21 = (2 x 3 x 3)/(3 x 7)

= 6/7

18/21 = 6/7

18/21 simplified is 6/7__where,__

18/21 is the given fraction to be simplified,*6/7* is the lowest term of 18/21.

step 1 Observe the input parameters and what to be found:

__Input values:__

Fraction = 18/21

__what to be found__:

18/21 = ?

Reduce 18/21 in lowest terms.

step 2 Find the prime factors of the numerator of given fraction 18/21.*Prime factors of 18* = 2 x 3 x 3

step 3 Find the prime factors of the denominator of given fraction 18/21.*Prime factors of 21* = 3 x 7

step 4 Rewrite the fraction 18/21 in the form of prime factors as like the below:

18/21= (2 x 3 x 3) / (3 x 7)

step 5 Check and reduce the factors of 18 and 21 if any factors in the numerator and denominator can be cancelled each other in the above fraction of prime factors:

= (2 x 3 x 3) / (3 x 7)

= (2 x 3)/( 7)

18/21 = 6/7

Hence,

18/21 in simplest form is **6/7**.