What is 21/55 Simplified to Simplest Form?

Fraction Simplifier Calculator

What is 21/55 Simplified?

Answer: Fraction 21/55 simplified to lowest terms is 21/55

21

/

55

=

21

/

55

The fraction 21/55 is already in the simplest form, so it isn't possible to reduce it any further - numerator 21 and denominator 55 have no common factors other than 1 (one)

Simplifying Fraction 21/55 using GCF

The first way to simplify the fraction 21/55 is to use the Greatest Common Factor (GCF) of our numerator [21] and denominator [55].

GCF of 21 and 55 is 1

And then divide both the numerator [21] and denominator [55] by the GCF [1].

21 ÷ 1

/

55 ÷ 1

=

21

/

55

Simplifying Fraction 21/55 using Prime Factors

Another method to reduce the fraction 21/55 to its simplest form is to use the Prime Factors of numerator [21] and denominator [55].

Prime Factors of 21: 3,7

Prime Factors of 55: 5,11

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

3 × 7

/

5 × 11

=

21

/

55

Simplifying Fraction 21/55 by Dividing by the Smallest Possible Number

In order to simplify our fraction we can start dividing both the numerator [21] and denominator [55] 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 (21/55) there is no possible numbers to divide our numerator and denominator.

Related Calculations

What is 21/55 as a percent?

Fraction Simplification Table

Fraction	Lowest Terms
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
21/46	21/46
21/47	21/47
21/48	7/16
21/49	3/7
21/50	21/50
21/51	7/17
21/52	21/52
21/53	21/53
21/54	7/18
21/55	21/55
21/56	3/8 (⅜)
21/57	7/19
21/58	21/58
21/59	21/59
21/60	7/20
21/61	21/61
21/62	21/62
21/63	1/3 (⅓)
21/64	21/64
21/65	21/65
21/66	7/22
21/67	21/67
21/68	21/68
21/69	7/23

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 21/55 Simplified? (The answer is: 21/55). Enter the fraction (numerator and denominator) (e.g. '21/55') and hit the 'Simplify' button.

Simplifying a fraction, (e.g. 21/55) 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).

21/55 Simplified