387/420 Simplified

Learn how to find what is 387/420 simplified as a fraction just in a few minutes. We have covered why the greatest common divisor or factorization is important to simplify 387/420 in simplest form.

To simplify 387/420 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 387/420 can be reduced in simplest form. In this case, the greatest common divisor of 387 and 420 is 3. Dividing both the numerator and denominator by GCD, the fraction 387/420 becomes 129/140 which is the simplest form.

Simplify 387/420 as a Fraction
Using Factorization:
387/420 = (?)
387/420 = (3 x 3 x 43)/(2 x 2 x 3 x 5 x 7)      //write 387/420 in terms of factors
= 129/140
387/420 = 129/140
387/420 simplified is 129/140

Using GCD:
387/420 = (?)
GCD of 387 and 420 is 3.
387/420 = (387/3)/(420/3)
= 129/140
387/420 = 129/140
387/420 simplified is 129/140 in fraction form
where,
387/420 is the given fraction to be simplified,
129/140 is the lowest term of 387/420.

Notes: Simplify 387/420 in lowest terms
1. 387/420 can be simplified only if the GCD of numerator and denominator is greater than 1. In this case, the GCD of 387 and 420 is 3 which is the greatest factor that evenly divides both numerator and denominator, so this fraction 387/420 can be represented in its reduced form.
2. On the other hand, you can also reduce 387/420 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 387/420 becomes (3 x 3 x 43)/(2 x 2 x 3 x 5 x 7). Now you can check and cancel the factors if any factors of numerator and denominator cancel each other to simplify 387/420 in its lowest terms.

step 1 Observe the input parameters and what to be found:
Input values:
Fraction = 387/420

what to be found:
387/420 = ?
Simplify 387/420 in lowest terms.

step 2 Find the prime factors of the numerator of given fraction 387/420.
Prime factors of 387 = 3 x 3 x 43

step 3 Find the prime factors of the denominator of given fraction 387/420.
Prime factors of 420 = 2 x 2 x 3 x 5 x 7

step 4 Rewrite the fraction 387/420 in the form of prime factors as like the below:
387/420= (3 x 3 x 43) / (2 x 2 x 3 x 5 x 7)

step 5 Check and reduce the factors of 387 and 420 if any factors in the numerator and denominator cancel each other:
= (3 x 3 x 43) / (2 x 2 x 3 x 5 x 7)
= ( 3 x 43)/(2 x 2 x 5 x 7)
387/420 = 129/140

Hence,
387/420 in simplest form is 129/140.

Representing fraction 387/420 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 387/420 in its lowest terms.