21/45 Simplified

What is 21/45 Simplified?

Answer: Fraction 21/45 simplified to lowest terms is 7/15
21
/
45
=
7
/
15

7/15 is the simplified fraction of 21/45.

Simplifying Fraction 21/45 using GCF

The first way to simplify the fraction 21/45 is to use the Greatest Common Factor (GCF) of our numerator [21] and denominator [45].

GCF of 21 and 45 is 3

And then divide both the numerator [21] and denominator [45] by the GCF [3].

21 ÷ 3
/
45 ÷ 3
=
7
/
15

Simplifying Fraction 21/45 using Prime Factors

Another method to reduce the fraction 21/45 to its simplest form is to use the Prime Factors of numerator [21] and denominator [45].

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

3 × 7
/
3 × 3 × 5
=
7
/
15

Simplifying Fraction 21/45 by Dividing by the Smallest Possible Number

In order to simplify our fraction we can start dividing both the numerator [21] and denominator [45] 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
/
45 ÷ 3
=
7
/
15

See Also

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 21/45 Simplified? (The answer is: 7/15). Enter the fraction (numerator and denominator) (e.g. '21/45') and hit the 'Simplify' button.
Simplifying a fraction, (e.g. 21/45) 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 21/45 Simplified?

Fraction 21/45 simplified to lowest terms is 7/15