What is 21/31 Simplified to Simplest Form?

Fraction Simplifier Calculator

What is 21/31 Simplified?

Answer: Fraction 21/31 simplified to lowest terms is 21/31

21

/

31

=

21

/

31

The fraction 21/31 is already in the simplest form, so it isn't possible to reduce it any further - numerator 21 and denominator 31 have no common factors other than 1 (one)

Simplifying Fraction 21/31 using GCF

The first way to simplify the fraction 21/31 is to use the Greatest Common Factor (GCF) of our numerator [21] and denominator [31].

GCF of 21 and 31 is 1

And then divide both the numerator [21] and denominator [31] by the GCF [1].

21 ÷ 1

/

31 ÷ 1

=

21

/

31

Simplifying Fraction 21/31 using Prime Factors

Another method to reduce the fraction 21/31 to its simplest form is to use the Prime Factors of numerator [21] and denominator [31].

Prime Factors of 21: 3,7

Prime Factors of 31: 31

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

3 × 7

/

31

=

21

/

31

Simplifying Fraction 21/31 by Dividing by the Smallest Possible Number

In order to simplify our fraction we can start dividing both the numerator [21] and denominator [31] by the smallest possible number (2,3,4,5... and so on), and repeat this until it is impossible to divide without a reminder.

In our case (21/31) there is no possible numbers to divide our numerator and denominator.

Related Calculations

What is 21/31 as a percent?

Fraction Simplification Table

Fraction	Lowest Terms
21/16	21/16
21/17	21/17
21/18	7/6
21/19	21/19
21/20	21/20
21/21	1/1
21/22	21/22
21/23	21/23
21/24	7/8 (⅞)
21/25	21/25
21/26	21/26
21/27	7/9
21/28	3/4 (¾)
21/29	21/29
21/30	7/10
21/31	21/31
21/32	21/32
21/33	7/11
21/34	21/34
21/35	3/5 (⅗)
21/36	7/12
21/37	21/37
21/38	21/38
21/39	7/13
21/40	21/40
21/41	21/41
21/42	1/2 (½)
21/43	21/43
21/44	21/44
21/45	7/15

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 21/31 Simplified? (The answer is: 21/31). Enter the fraction (numerator and denominator) (e.g. '21/31') and hit the 'Simplify' button.

Simplifying a fraction, (e.g. 21/31) 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).

21/31 Simplified