What is 31/21 Simplified to Simplest Form?

Fraction Simplifier Calculator

What is 31/21 Simplified?

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

31

/

21

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

Since the numerator [31] is greater than the denominator [21] of the fraction (it's called an improper fraction), so we can convert it into a mixed fraction with a whole number:

31

/

21

=1

10

/

21

Simplifying Fraction 31/21 using GCF

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

GCF of 31 and 21 is 1

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

31 ÷ 1

/

21 ÷ 1

=

31

/

21

Simplifying Fraction 31/21 using Prime Factors

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

Prime Factors of 31: 31

Prime Factors of 21: 3,7

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

31

/

3 × 7

=

31

/

21

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

In order to simplify our fraction we can start dividing both the numerator [31] and denominator [21] 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 (31/21) there is no possible numbers to divide our numerator and denominator.

Related Calculations

What is 31/21 as a Mixed Number?

Fraction Simplification Table

Fraction	Lowest Terms
31/6	31/6
31/7	31/7
31/8	31/8
31/9	31/9
31/10	31/10
31/11	31/11
31/12	31/12
31/13	31/13
31/14	31/14
31/15	31/15
31/16	31/16
31/17	31/17
31/18	31/18
31/19	31/19
31/20	31/20
31/21	31/21
31/22	31/22
31/23	31/23
31/24	31/24
31/25	31/25
31/26	31/26
31/27	31/27
31/28	31/28
31/29	31/29
31/30	31/30
31/31	1/1
31/32	31/32
31/33	31/33
31/34	31/34
31/35	31/35

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

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

31/21 Simplified