The square root of 3/21 is the same as the square root of 3 divided by the square root of 21.
Parts of a fraction
It’s important to know the different parts of a fraction. The fraction has three parts
Numerator: The numerator is the topmost number of the fraction
In this case, the numerator is 3
Denominator: This is the bottom number of the fraction
In this case, the Denominator is 21
Fraction bar: The symbol that separates the numerator and denominator to form one fraction with two parts
How to find the square root of a fraction
1. Find the square root of the numerator
The square root of 3 is 1.732050808
2. Find the square root of the denominator
The square root of 21 is 4.582575695
3. Divide the square root of the numerator by the square root of the denominator
1.732050808/4.582575695
Therefore the square root of 3/21 is 0.377964473
Fraction Square root Calculator
Use the calculator below to check the square root of a fraction