21/39 Simplified

What is 21/39 Simplified?

Answer: Fraction 21/39 simplified to lowest terms is 7/13
21
/
39
=
7
/
13

7/13 is the simplified fraction of 21/39.

Simplifying Fraction 21/39 using GCF

The first way to simplify the fraction 21/39 is to use the Greatest Common Factor (GCF) of our numerator [21] and denominator [39].

GCF of 21 and 39 is 3

And then divide both the numerator [21] and denominator [39] by the GCF [3].

21 ÷ 3
/
39 ÷ 3
=
7
/
13

Simplifying Fraction 21/39 using Prime Factors

Another method to reduce the fraction 21/39 to its simplest form is to use the Prime Factors of numerator [21] and denominator [39].

Now we can write down a new fraction expressed by its Prime Factors and cancel common factors in numerator and denominator:

3 × 7
/
3 × 13
=
7
/
13

Simplifying Fraction 21/39 by Dividing by the Smallest Possible Number

In order to simplify our fraction we can start dividing both the numerator [21] and denominator [39] by the smallest possible number (2,3,4,5... and so on), and repeat this until it is impossible to divide without a reminder.

21 ÷ 3
/
39 ÷ 3
=
7
/
13

Related Calculations

Fraction Simplifier Calculator

This calculator will help you to simplify any fraction to its simplest form. For example, it can help you find out what is 21/39 Simplified? (The answer is: 7/13). Enter the fraction (numerator and denominator) (e.g. '21/39') and hit the 'Simplify' button.
Simplifying a fraction, (e.g. 21/39) means reducing it to its simplest form. A fraction is considered simplified if its numerator and denominator have no common factors other than 1 (one).

FAQ

What is 21/39 Simplified?

Fraction 21/39 simplified to lowest terms is 7/13