# What is the Reduced Fraction for 15/21? getcalc.com's fraction simplification calculator to find what's a reduced or simplest form for 15/21 at its lowest terms. 5/7 is a simplified fraction for 15/21

## How to Simplify Fraction 15/21 to its Lowest Term?

The below workout with step by step calculation shows how to simplify the fraction 15/21 to its lowest term or simplest form. The below are the two methods used to convert the fraction to its lowest terms.
1. GCD or HCF method
2. Prime factorization method
GCD Method :
step 1 Address the formula, input parameters & values.
Input parameters & values:
The given fraction = 15/21

step 2 Find GCD (Greatest Common Factor) for both numerator & denominator.
The GCF for 15 & 21 is 3

step 3 divide the numerator & denominator by GCD 3 and rewrite the fraction
= (15/3) / (21/3)
= 5/7

Thus, 5/7 is the simplified fraction for 15/21 by using the GCD or HCF method.

Prime Factorization Method :
step 1 Address input parameters & values.
Input parameters & values:
The given fraction = 15/21

step 2 Find prime factors for both numerator & denominator and rewrite the fraction in the form of prime factors
Prime factors for 15 = 3 x 5
Prime factors for 21 = 3 x 7
= (3 x 5) / (3 x 7)

step 3 solve & rewrite the fraction
= ( 5)/( 7)
= 5/7

Thus, 5/7 is the simplified fraction for 15/21 by using the prime factorization method.

## Chart

User may refer the below chart for simplest form of 15/21 and its nearest values.
FractionReduced FormDecimal Value
12/214/70.5714
12/274/90.4444
15/185/60.8333
15/215/70.7143
15/245/80.625
15/275/90.5556
18/216/70.8571
21/187/61.1667
21/247/80.875
21/277/90.7778
24/218/71.1429
24/278/90.8889 